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PROCESSORS · YOUR NEXT FACE-OFF

Intel Core i9-12900K vs Intel Core i9-14900KS

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Intel Core i9-12900K

Boxed desktop processor · FCLGA1700 · BX8071512900K · original premium packaging

Intel Core i9-12900K original premium retail box with a gold plastic wafer holder; this packaging is discontinued
Exact model & source notes

A 16-core, 24-thread Alder Lake processor for LGA1700 with 8 Performance-cores, 8 Efficient-cores, up to 5.2 GHz turbo, 30 MB of L3 cache and UHD Graphics 770. It is unlocked for overclocking and works with DDR4 or DDR5, depending on the motherboard. No cooler is included.

Specifications checked 12 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications
WHAT DIFFERS

Different designs: Alder Lake vs Raptor Lake. Their published clocks are listed, but a higher clock across designs does not mean faster.

ArchitectureAlder LakeRaptor Lake
16CPU cores24
8Efficient-cores16
The first 3 of 27 verified differences, in the order listed below. Not a rating.
See the 27 verified differences
THE CONTENDER

Intel Core i9-14900KS

Boxed desktop processor · FCLGA1700 · BX8071514900KS

Intel Core i9-14900KS Special Edition packaging alternatives: discontinued premium box on the left and replacement standard box on the right; one processor, not a bundle
Exact model & source notes

A 24-core, 32-thread Raptor Lake processor for LGA1700 with 8 Performance-cores and 16 Efficient-cores, up to 6.2 GHz with Thermal Velocity Boost, 36 MB of L3 cache and UHD Graphics 770. It is unlocked for overclocking; Intel advises running it with the latest motherboard BIOS and Intel Default Settings.

Specifications checked 12 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

i9-12900K UK & US retailers

UK & US price history: no verified listing yet

i9-14900KS UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison
  • Manufacturer facts for the exact models shown. Not a quality rating or a test result.
  • “Different” means the known values differ, not that one is better.
  • Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE7 topics
SELECTED TOPIC
01 / 07

Architecture

Different hardware. A chip name or generation does not quantify real-world performance.

Intel Core i9-12900KAlder Lake

Manufacturer specification

Intel Core i9-14900KSRaptor Lake

Manufacturer specification

Explore the full specifications

Check each processor’s platform. Match each processor to its supported socket, motherboard CPU-support list, BIOS, memory type and cooler. The two processors may require different platforms. No overall winner is declared without comparable performance and price evidence.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

27 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Intel Core i9-12900K16
Intel Core i9-14900KS24
Sources
Intel Core i9-12900K

Manufacturer specification · Total of Performance-cores and Efficient-cores, which run at different speeds.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Total of Performance-cores and Efficient-cores, which run at different speeds.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Maximum single-core turbo

In Visual facts
Intel Core i9-12900K5.2 GHz
Intel Core i9-14900KS6.2 GHz
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications

Published clock limits are not application speed. Boost depends on workload, cooling and firmware; it is not a sustained all-core frequency.

Show 21 more verified differences

Base / boost clocks and conditions

In Visual facts
Intel Core i9-12900KP-cores: 3.20 GHz base, up to 5.10 GHz turbo; E-cores: 2.40 GHz base, up to 3.90 GHz turbo; maximum single-core turbo up to 5.20 GHz
Intel Core i9-14900KSP-cores: 3.20 GHz base, up to 5.70 GHz turbo; E-cores: 2.40 GHz base, up to 4.50 GHz turbo; maximum single-core turbo up to 6.20 GHz
Sources
Intel Core i9-12900K

Manufacturer specification · Maximum turbo applies to eligible cores, not all cores at once; clocks depend on workload, temperature, power settings and the motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Maximum turbo applies to eligible cores, not all cores at once; clocks depend on workload, temperature, power settings and the motherboard. Thermal Velocity Boost and Turbo Boost Max 3.0 are separate from the regular P-core turbo.

Intel Core i9-14900KS — manufacturer specifications

Published clock limits are not application speed. Boost depends on workload, cooling and firmware; it is not a sustained all-core frequency.

Memory support

Intel Core i9-12900KUp to DDR5-4800 or DDR4-3200; 128 GB maximum; 2 channels
Intel Core i9-14900KSUp to DDR5-5600 or DDR4-3200; 192 GB maximum; 2 channels
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Maximum supported memory

Intel Core i9-12900K128 GB
Intel Core i9-14900KS192 GB
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Intel Application Optimization

Intel Core i9-12900KLimited (Advanced Mode only)
Intel Core i9-14900KSSupported
Sources
Intel Core i9-12900K

Manufacturer specification · Needs Windows 11, a compatible BIOS and Intel DTT/IPF (DTT 11405 or newer). The 12900K falls under Intel's 12th-generation Advanced Mode policy; limited support can cause slowdowns, and only selected applications benefit.

Intel Core i9-12900K — manufacturer specificationsIntel Application Optimization — verified models and limited Advanced Mode support
Intel Core i9-14900KS

Manufacturer specification · Needs Windows 11, a compatible BIOS and Intel DTT/IPF. Intel lists the 14900KS as a supported processor; only selected applications benefit.

Intel Application Optimization — verified models and limited Advanced Mode support

Check the exact configuration and source conditions for your use.

Rated DDR5 transfer ceiling

Intel Core i9-12900K4800 MT/s
Intel Core i9-14900KS5600 MT/s
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Efficient-core maximum turbo

Intel Core i9-12900K3.9 GHz
Intel Core i9-14900KS4.5 GHz
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Listed management capabilities

Intel Core i9-12900KAMT; Standard Manageability; One-Click Recovery; Hardware Shield eligibility; Stable IT Platform Program
Intel Core i9-14900KSAMT; Standard Manageability; Remote Platform Erase; One-Click Recovery; Hardware Shield eligibility
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Maximum Turbo Power

Intel Core i9-12900K241 W
Intel Core i9-14900KS253 W
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Published maximum memory bandwidth

Intel Core i9-12900K76.8 GB/s
Intel Core i9-14900KS89.6 GB/s
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's maximum memory bandwidth; actual bandwidth depends on the memory configuration.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's maximum memory bandwidth; actual bandwidth depends on the memory configuration.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Performance-core regular turbo

Intel Core i9-12900K5.1 GHz
Intel Core i9-14900KS5.7 GHz
Sources
Intel Core i9-12900K

Manufacturer specification · Peak Performance-core turbo, not a sustained all-core speed; separate from Turbo Boost Max 3.0 and Thermal Velocity Boost.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak Performance-core turbo, not a sustained all-core speed; separate from Turbo Boost Max 3.0 and Thermal Velocity Boost.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Boxed packaging

Intel Core i9-12900KStandard box; premium gold-wafer box discontinued
Intel Core i9-14900KSStandard box; premium silver-wafer box discontinued
Sources
Intel Core i9-12900K

Manufacturer specification · Intel moved the i9-12900K to a standard box design. The earlier premium box, with the processor in a golden plastic wafer holder, is discontinued but may still be on sale; check which box the seller supplies.

Intel i9-12900K and i9-12900KS — original and replacement packaging
Intel Core i9-14900KS

Manufacturer specification · Intel moved the i9-14900KS to a standard box design. The earlier premium box, with the processor in a silver plastic wafer holder, is discontinued; the processor is the same in either box. Check which box the seller supplies.

Intel i9-14900K and i9-14900KS — boxed packaging transition

Check the exact configuration and source conditions for your use.

Processor power definitions

Intel Core i9-12900K125 W Processor Base Power; 241 W Maximum Turbo Power
Intel Core i9-14900KS150 W Processor Base Power; 253 W Maximum Turbo Power
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Processor Base Power

Intel Core i9-12900K125 W
Intel Core i9-14900KS150 W
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Listed security capabilities

Intel Core i9-12900KThreat Detection; Secure Key; Control-Flow Enforcement; Total Memory Encryption - Multi Key; AES New Instructions; OS Guard; Trusted Execution; Execute Disable Bit; Boot Guard; Mode-based Execute Control; Total Memory Encryption
Intel Core i9-14900KSThreat Detection; Secure Key; Control-Flow Enforcement; Total Memory Encryption - Multi Key; AES New Instructions; OS Guard; Trusted Execution; Execute Disable Bit; Boot Guard; Mode-based Execute Control
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; no system is secure against every threat.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; no system is secure against every threat.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Turbo Boost Max 3.0 frequency

Intel Core i9-12900K5.2 GHz
Intel Core i9-14900KS5.9 GHz
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Intel vPro eligibility

Intel Core i9-12900KEnterprise
Intel Core i9-14900KSEnterprise; Essentials; Platform
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; vPro eligibility isn't certification of a built PC.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; vPro eligibility isn't certification of a built PC.

Intel Core i9-14900KS — manufacturer specifications

Check the exact configuration and source conditions for your use.

Configuration & compatibility details (3)

BIOS and stability guidance

Intel Core i9-12900KNot affected by the 13th/14th-generation Vmin Shift issue
Intel Core i9-14900KSUse the latest board BIOS with Intel microcode 0x12F or later and the relevant Intel Default Settings
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's statement of 30 August 2024 covers the 13th/14th-generation Vmin Shift issue only.

Intel employee statement — 12th-generation products outside the Vmin Shift issue
Intel Core i9-14900KS

Manufacturer specification · Intel's guidance reduces a specific reported instability risk; it doesn't repair a processor that is already damaged.

Intel Vmin Shift guidance — reviewed 21 July 2026

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Boxed ordering code

Intel Core i9-12900KBX8071512900K
Intel Core i9-14900KSBX8071514900KS
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's order code for the boxed version; tray and China-market BXC versions have different codes.

Intel i9-12900K — exact BOX ordering and specification codes
Intel Core i9-14900KS

Manufacturer specification · Intel's order code for the boxed version; tray and China-market BXC versions have different codes.

Intel i9-14900KS — exact BOX ordering and specification codes

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Specification codes and steppings

Intel Core i9-12900KSRL4H (C0)
Intel Core i9-14900KSSRN7R (B0)
Sources
Intel Core i9-12900K

Manufacturer specification · Intel lists this specification code and stepping for the boxed order code.

Intel i9-12900K — exact BOX ordering and specification codes
Intel Core i9-14900KS

Manufacturer specification · Intel lists this specification code and stepping for the boxed order code.

Intel i9-14900KS — exact BOX ordering and specification codes

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Missing or non-comparable evidence (3)

Intel Adaptive Boost

Intel Core i9-12900KNot verified
Intel Core i9-14900KSYes
Sources
Intel Core i9-12900K

Intel's 12900K specification page doesn't list Adaptive Boost Technology. · Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-14900KS — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Intel Optane Memory support

Intel Core i9-12900KYes
Intel Core i9-14900KSNot verified
Sources
Intel Core i9-12900K

Manufacturer specification · Needs a compatible chipset, drive, software and operating system.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Intel's 14900KS specification page doesn't list Optane Memory support. · Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Thermal Velocity Boost frequency

Intel Core i9-12900KNot verified
Intel Core i9-14900KS6.2 GHz
Sources
Intel Core i9-12900K

Intel's 12900K specification page doesn't list a Thermal Velocity Boost frequency. · Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency when temperature and power allow, not a sustained all-core speed.

Intel Core i9-14900KS — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

36 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Intel Core i9-12900K

What it brings

What to check

Intel Core i9-14900KS

What it brings

What to check

COMPARE THE DETAILS

Full specifications

How we verify
69 of 69 specifications Sources in each row
Source-backed specifications for Intel Core i9-12900K and Intel Core i9-14900KS
SpecificationIntel Core i9-12900KIntel Core i9-14900KS
Core count and architectureDifferent
Sources
Intel Core i9-12900K

Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
16 total (8 Performance-cores + 8 Efficient-cores)24 total (8 Performance-cores + 16 Efficient-cores)
Thread countDifferent
Sources
Intel Core i9-12900K

Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
2432
Base / boost clocks and conditionsDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Maximum turbo applies to eligible cores, not all cores at once; clocks depend on workload, temperature, power settings and the motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Maximum turbo applies to eligible cores, not all cores at once; clocks depend on workload, temperature, power settings and the motherboard. Thermal Velocity Boost and Turbo Boost Max 3.0 are separate from the regular P-core turbo.

Intel Core i9-14900KS — manufacturer specifications
P-cores: 3.20 GHz base, up to 5.10 GHz turbo; E-cores: 2.40 GHz base, up to 3.90 GHz turbo; maximum single-core turbo up to 5.20 GHzP-cores: 3.20 GHz base, up to 5.70 GHz turbo; E-cores: 2.40 GHz base, up to 4.50 GHz turbo; maximum single-core turbo up to 6.20 GHz
CPU coresDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Total of Performance-cores and Efficient-cores, which run at different speeds.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Total of Performance-cores and Efficient-cores, which run at different speeds.

Intel Core i9-14900KS — manufacturer specifications
1624
Performance-cores
Sources
Intel Core i9-12900K

Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
88
Efficient-coresDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Efficient-cores are separate from Performance-cores.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Efficient-cores are separate from Performance-cores.

Intel Core i9-14900KS — manufacturer specifications
816
ArchitectureDifferent
Sources
Intel Core i9-12900K

Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
Alder LakeRaptor Lake
Maximum single-core turboDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications
5.2 GHz6.2 GHz
Performance-core base clock
Sources
Intel Core i9-12900K

Manufacturer specification · Performance-core base frequency.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Performance-core base frequency.

Intel Core i9-14900KS — manufacturer specifications
3.2 GHz3.2 GHz
Performance-core regular turboDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Peak Performance-core turbo, not a sustained all-core speed; separate from Turbo Boost Max 3.0 and Thermal Velocity Boost.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak Performance-core turbo, not a sustained all-core speed; separate from Turbo Boost Max 3.0 and Thermal Velocity Boost.

Intel Core i9-14900KS — manufacturer specifications
5.1 GHz5.7 GHz
Efficient-core base clock
Sources
Intel Core i9-12900K

Manufacturer specification · Efficient-core base frequency.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Efficient-core base frequency.

Intel Core i9-14900KS — manufacturer specifications
2.4 GHz2.4 GHz
Efficient-core maximum turboDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications
3.9 GHz4.5 GHz
Turbo Boost Max 3.0 frequencyDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency, not a sustained all-core speed; workload, cooling, power settings and the motherboard affect it.

Intel Core i9-14900KS — manufacturer specifications
5.2 GHz5.9 GHz
Thermal Velocity Boost frequency
Sources
Intel Core i9-12900K

Intel's 12900K specification page doesn't list a Thermal Velocity Boost frequency. · Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Peak frequency when temperature and power allow, not a sustained all-core speed.

Intel Core i9-14900KS — manufacturer specifications
Not listed by the manufacturer6.2 GHz
Intel Adaptive Boost
Sources
Intel Core i9-12900K

Intel's 12900K specification page doesn't list Adaptive Boost Technology. · Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-14900KS — manufacturer specifications
Not listed by the manufacturerYes
Tuning support
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's XTU page names this processor; use the 7.14 branch (7.14.2.93), as version 10.0 is for Core Ultra Series 2 and newer. Needs an overclocking-capable chipset, supported Windows and BIOS; results aren't guaranteed.

Intel XTU — exact supported models and version 7.14 platform requirementsIntel unlocked processors — model example and tuning conditions
Intel Core i9-14900KS

Manufacturer specification · Intel's XTU page names this processor; use the 7.14 branch (7.14.2.93), as version 10.0 is for Core Ultra Series 2 and newer. Needs an overclocking-capable chipset, supported Windows and BIOS; results aren't guaranteed.

Intel XTU — exact supported models and version 7.14 platform requirementsIntel i9-14900KS — archived 14 March 2024 launch and exact unlocked features
Unlocked processor; Intel XTU 7.14 supportedUnlocked processor; Intel XTU 7.14 supported
CPU unlocked for overclocking
Sources
Intel Core i9-12900K

Manufacturer specification · Intel lists the processor as unlocked; the motherboard and firmware must support it, and overclocking can affect stability and warranty.

Intel XTU — exact supported models and version 7.14 platform requirementsIntel unlocked processors — model example and tuning conditions
Intel Core i9-14900KS

Manufacturer specification · Intel lists the processor as unlocked; the motherboard and firmware must support it, and overclocking can affect stability and warranty.

Intel XTU — exact supported models and version 7.14 platform requirementsIntel unlocked processors — model example and tuning conditionsIntel i9-14900KS — archived 14 March 2024 launch and exact unlocked features
YesYes
Maximum CPU configuration
Sources
Intel Core i9-12900K

Manufacturer specification · Single-processor platforms.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Single-processor platforms.

Intel Core i9-14900KS — manufacturer specifications
11
Intel Thread Director
Sources
Intel Core i9-12900K

Manufacturer specification · Helps the operating system schedule work across Performance-cores and Efficient-cores.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Helps the operating system schedule work across Performance-cores and Efficient-cores.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Intel Hyper-Threading
Sources
Intel Core i9-12900K

Manufacturer specification · Only the Performance-cores run two threads each; 24 threads in total.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Only the Performance-cores run two threads each; 32 threads in total.

Intel Core i9-14900KS — manufacturer specifications
YesYes
L3 cacheDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel Smart Cache (L3).

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel Smart Cache (L3).

Intel Core i9-14900KS — manufacturer specifications
30 MB36 MB
Total L2 cacheDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Total L2 cache, distinct from shared L3.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Total L2 cache, distinct from shared L3.

Intel Core i9-14900KS — manufacturer specifications
14 MB32 MB
Memory supportDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications
Up to DDR5-4800 or DDR4-3200; 128 GB maximum; 2 channelsUp to DDR5-5600 or DDR4-3200; 192 GB maximum; 2 channels
Memory channels
Sources
Intel Core i9-12900K

Manufacturer specification

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
22
Maximum supported memoryDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications
128 GB192 GB
Rated DDR5 transfer ceilingDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications
4800 MT/s5600 MT/s
Rated DDR4 transfer ceiling
Sources
Intel Core i9-12900K

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Choose a motherboard for either DDR5 or DDR4; the processor supports both, but a board takes only one type. Rated speeds depend on the memory configuration and motherboard.

Intel Core i9-14900KS — manufacturer specifications
3200 MT/s3200 MT/s
Published maximum memory bandwidthDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's maximum memory bandwidth; actual bandwidth depends on the memory configuration.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's maximum memory bandwidth; actual bandwidth depends on the memory configuration.

Intel Core i9-14900KS — manufacturer specifications
76.8 GB/s89.6 GB/s
CPU ECC memory capability
Sources
Intel Core i9-12900K

Manufacturer specification · Needs a motherboard chipset, BIOS and memory that enable ECC.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs a motherboard chipset, BIOS and memory that enable ECC.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Socket
Sources
Intel Core i9-12900K

Manufacturer specification · The socket alone doesn't guarantee support; check the motherboard's CPU-support list and BIOS.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · The socket alone doesn't guarantee support; check the motherboard's CPU-support list and BIOS.

Intel Core i9-14900KS — manufacturer specifications
FCLGA1700FCLGA1700
CPU PCI Express
Sources
Intel Core i9-12900K

Manufacturer specification · Intel lists 1×16+4 or 2×8+4 lane configurations; board wiring and chipset lanes are separate.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel lists 1×16+4 or 2×8+4 lane configurations; board wiring and chipset lanes are separate.

Intel Core i9-14900KS — manufacturer specifications
PCIe 5.0 and 4.0; up to 20 CPU lanesPCIe 5.0 and 4.0; up to 20 CPU lanes
Maximum CPU PCIe lanes
Sources
Intel Core i9-12900K

Manufacturer specification · Lanes provided by the processor; chipset lanes and board slots are separate.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Lanes provided by the processor; chipset lanes and board slots are separate.

Intel Core i9-14900KS — manufacturer specifications
2020
CPU-to-chipset interface
Sources
Intel Core i9-12900K

Manufacturer specification · DMI links the processor to the chipset; these lanes aren't extra slots.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · DMI links the processor to the chipset; these lanes aren't extra slots.

Intel Core i9-14900KS — manufacturer specifications
DMI 4.0; up to 8 lanesDMI 4.0; up to 8 lanes
BIOS and stability guidanceDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's statement of 30 August 2024 covers the 13th/14th-generation Vmin Shift issue only.

Intel employee statement — 12th-generation products outside the Vmin Shift issue
Intel Core i9-14900KS

Manufacturer specification · Intel's guidance reduces a specific reported instability risk; it doesn't repair a processor that is already damaged.

Intel Vmin Shift guidance — reviewed 21 July 2026
Not affected by the 13th/14th-generation Vmin Shift issueUse the latest board BIOS with Intel microcode 0x12F or later and the relevant Intel Default Settings
Integrated graphics or none
Sources
Intel Core i9-12900K

Manufacturer specification · Display output needs a motherboard with video ports.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Display output needs a motherboard with video ports.

Intel Core i9-14900KS — manufacturer specifications
Intel UHD Graphics 770Intel UHD Graphics 770
Integrated graphics available
Sources
Intel Core i9-12900K

Manufacturer specification · Intel UHD Graphics 770 built in; display outputs depend on the motherboard.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel UHD Graphics 770 built in; display outputs depend on the motherboard.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Integrated graphics base frequency
Sources
Intel Core i9-12900K

Manufacturer specification · Graphics base frequency.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Graphics base frequency.

Intel Core i9-14900KS — manufacturer specifications
300 MHz300 MHz
Integrated graphics dynamic ceilingDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Maximum graphics clock.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Maximum graphics clock.

Intel Core i9-14900KS — manufacturer specifications
1.55 GHz1.65 GHz
Graphics execution units
Sources
Intel Core i9-12900K

Manufacturer specification · Intel execution units; not directly comparable with other GPU designs.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel execution units; not directly comparable with other GPU designs.

Intel Core i9-14900KS — manufacturer specifications
3232
Processor graphics interfaces
Sources
Intel Core i9-12900K

Manufacturer specification · Interfaces the processor supports; the motherboard decides which ports are fitted.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Interfaces the processor supports; the motherboard decides which ports are fitted.

Intel Core i9-14900KS — manufacturer specifications
eDP 1.4b; DisplayPort 1.4a; HDMI 2.1eDP 1.4b; DisplayPort 1.4a; HDMI 2.1
Published display mode limits
Sources
Intel Core i9-12900K

Manufacturer specification · Separate limits for each interface; they don't all apply at once, and the board, cable and display must support them.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Separate limits for each interface; they don't all apply at once, and the board, cable and display must support them.

Intel Core i9-14900KS — manufacturer specifications
HDMI: 4096 × 2160 at 60 Hz; DP: 7680 × 4320 at 60 Hz; eDP: 5120 × 3200 at 120 HzHDMI: 4096 × 2160 at 60 Hz; DP: 7680 × 4320 at 60 Hz; eDP: 5120 × 3200 at 120 Hz
Maximum supported displays
Sources
Intel Core i9-12900K

Manufacturer specification · Up to four displays, depending on the motherboard, drivers and operating system; not all at each interface's maximum mode.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Up to four displays, depending on the motherboard, drivers and operating system; not all at each interface's maximum mode.

Intel Core i9-14900KS — manufacturer specifications
44
Graphics API support
Sources
Intel Core i9-12900K

Manufacturer specification · API versions supported by the built-in graphics; drivers and the operating system also matter.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · API versions supported by the built-in graphics; drivers and the operating system also matter.

Intel Core i9-14900KS — manufacturer specifications
DirectX 12; OpenGL 4.5; OpenCL 3.0DirectX 12; OpenGL 4.5; OpenCL 3.0
Multi-format codec engines
Sources
Intel Core i9-12900K

Manufacturer specification · Number of media engines.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Number of media engines.

Intel Core i9-14900KS — manufacturer specifications
22
Intel Quick Sync Video
Sources
Intel Core i9-12900K

Manufacturer specification · Hardware video encoding and decoding; check that your software supports it.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Hardware video encoding and decoding; check that your software supports it.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Intel Clear Video HD
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Integrated GPU device IDDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Graphics device ID.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Graphics device ID.

Intel Core i9-14900KS — manufacturer specifications
0x46800xA780
Gaussian and Neural Accelerator
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's Gaussian & Neural Accelerator; not comparable with NPU TOPS ratings.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's Gaussian & Neural Accelerator; not comparable with NPU TOPS ratings.

Intel Core i9-14900KS — manufacturer specifications
Intel GNA 3.0Intel GNA 3.0
CPU Deep Learning Boost
Sources
Intel Core i9-12900K

Manufacturer specification · CPU instructions for AI workloads.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · CPU instructions for AI workloads.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Processor power definitionsDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications
125 W Processor Base Power; 241 W Maximum Turbo Power150 W Processor Base Power; 253 W Maximum Turbo Power
Processor Base PowerDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications
125 W150 W
Maximum Turbo PowerDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's base and maximum turbo power ratings, not measured system power. Check the motherboard's power settings and cooling.

Intel Core i9-14900KS — manufacturer specifications
241 W253 W
Maximum junction temperature
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's maximum junction temperature, not a typical running temperature.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's maximum junction temperature, not a typical running temperature.

Intel Core i9-14900KS — manufacturer specifications
100 °C100 °C
Included boxed cooler
Sources
Intel Core i9-12900K

Manufacturer specification · Intel doesn't include a cooler with this boxed processor; tray and OEM bundles may differ.

Intel desktop boxed processor contents
Intel Core i9-14900KS

Manufacturer specification · Intel doesn't include a cooler with this boxed processor; tray and OEM bundles may differ.

Intel desktop boxed processor cooling contents
No included coolerNo included cooler
Clock and thermal management
Sources
Intel Core i9-12900K

Manufacturer specification · Intel power-management technologies.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel power-management technologies.

Intel Core i9-14900KS — manufacturer specifications
Speed Shift; Turbo Boost 2.0; Turbo Boost Max 3.0; Enhanced SpeedStep; idle states; thermal monitoringSpeed Shift; Turbo Boost 2.0; Turbo Boost Max 3.0; Enhanced SpeedStep; idle states; thermal monitoring
Process technology
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's process name.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's process name.

Intel Core i9-14900KS — manufacturer specifications
Intel 7Intel 7
CPU package dimensions
Sources
Intel Core i9-12900K

Manufacturer specification · Size of the processor package, not the retail box.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Size of the processor package, not the retail box.

Intel Core i9-14900KS — manufacturer specifications
45.0 × 37.5 mm45.0 × 37.5 mm
Boxed ordering codeDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's order code for the boxed version; tray and China-market BXC versions have different codes.

Intel i9-12900K — exact BOX ordering and specification codes
Intel Core i9-14900KS

Manufacturer specification · Intel's order code for the boxed version; tray and China-market BXC versions have different codes.

Intel i9-14900KS — exact BOX ordering and specification codes
BX8071512900KBX8071514900KS
Specification codes and steppingsDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel lists this specification code and stepping for the boxed order code.

Intel i9-12900K — exact BOX ordering and specification codes
Intel Core i9-14900KS

Manufacturer specification · Intel lists this specification code and stepping for the boxed order code.

Intel i9-14900KS — exact BOX ordering and specification codes
SRL4H (C0)SRN7R (B0)
Boxed packagingDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel moved the i9-12900K to a standard box design. The earlier premium box, with the processor in a golden plastic wafer holder, is discontinued but may still be on sale; check which box the seller supplies.

Intel i9-12900K and i9-12900KS — original and replacement packaging
Intel Core i9-14900KS

Manufacturer specification · Intel moved the i9-14900KS to a standard box design. The earlier premium box, with the processor in a silver plastic wafer holder, is discontinued; the processor is the same in either box. Check which box the seller supplies.

Intel i9-14900K and i9-14900KS — boxed packaging transition
Standard box; premium gold-wafer box discontinuedStandard box; premium silver-wafer box discontinued
Instruction set and extensions
Sources
Intel Core i9-12900K

Manufacturer specification · Instruction sets Intel lists; AVX-512 is not listed.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Instruction sets Intel lists; AVX-512 is not listed.

Intel Core i9-14900KS — manufacturer specifications
Intel 64; 64-bit; SSE4.1; SSE4.2; AVX2Intel 64; 64-bit; SSE4.1; SSE4.2; AVX2
Intel Volume Management Device
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-14900KS — manufacturer specifications
YesYes
Intel Optane Memory support
Sources
Intel Core i9-12900K

Manufacturer specification · Needs a compatible chipset, drive, software and operating system.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Intel's 14900KS specification page doesn't list Optane Memory support. · Manufacturer specification

Intel Core i9-14900KS — manufacturer specifications
YesNot listed by the manufacturer
Intel vPro eligibilityDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; vPro eligibility isn't certification of a built PC.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; vPro eligibility isn't certification of a built PC.

Intel Core i9-14900KS — manufacturer specifications
EnterpriseEnterprise; Essentials; Platform
Listed management capabilitiesDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system.

Intel Core i9-14900KS — manufacturer specifications
AMT; Standard Manageability; One-Click Recovery; Hardware Shield eligibility; Stable IT Platform ProgramAMT; Standard Manageability; Remote Platform Erase; One-Click Recovery; Hardware Shield eligibility
Listed security capabilitiesDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; no system is secure against every threat.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers and operating system; no system is secure against every threat.

Intel Core i9-14900KS — manufacturer specifications
Threat Detection; Secure Key; Control-Flow Enforcement; Total Memory Encryption - Multi Key; AES New Instructions; OS Guard; Trusted Execution; Execute Disable Bit; Boot Guard; Mode-based Execute Control; Total Memory EncryptionThreat Detection; Secure Key; Control-Flow Enforcement; Total Memory Encryption - Multi Key; AES New Instructions; OS Guard; Trusted Execution; Execute Disable Bit; Boot Guard; Mode-based Execute Control
Virtualization capabilities
Sources
Intel Core i9-12900K

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Needs support from the motherboard, chipset, BIOS, drivers, operating system and software.

Intel Core i9-14900KS — manufacturer specifications
VT-rp; VT-x; VT-d; Extended Page TablesVT-rp; VT-x; VT-d; Extended Page Tables
Manufacturer launch quarterDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Intel's launch quarter, not a sign of current stock.

Intel Core i9-12900K — manufacturer specifications
Intel Core i9-14900KS

Manufacturer specification · Intel's launch quarter, not a sign of current stock.

Intel Core i9-14900KS — manufacturer specifications
Q4 2021Q1 2024
Intel Application OptimizationDifferent
Sources
Intel Core i9-12900K

Manufacturer specification · Needs Windows 11, a compatible BIOS and Intel DTT/IPF (DTT 11405 or newer). The 12900K falls under Intel's 12th-generation Advanced Mode policy; limited support can cause slowdowns, and only selected applications benefit.

Intel Core i9-12900K — manufacturer specificationsIntel Application Optimization — verified models and limited Advanced Mode support
Intel Core i9-14900KS

Manufacturer specification · Needs Windows 11, a compatible BIOS and Intel DTT/IPF. Intel lists the 14900KS as a supported processor; only selected applications benefit.

Intel Application Optimization — verified models and limited Advanced Mode support
Limited (Advanced Mode only)Supported
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Closest processors to this pair by shared key specifications. Not a popularity ranking.

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.