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PROCESSORS · YOUR NEXT FACE-OFF

AMD Ryzen 9 7900X3D vs AMD Ryzen 9 9950X3D

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

Compared products

YOUR FIRST CHOICE

AMD Ryzen 9 7900X3D

AM5 boxed processor 100-100000909WOF · cooler not included

AMD's official boxed-product artwork associated with Ryzen 9 7900X3D on its exact manufacturer product page; the visible artwork identifies the family rather than a readable exact model number.
Full product profile Official image
Exact model & source notes

A 12-core, 24-thread Zen 4 processor for AM5 with AMD 3D V-Cache, giving 128 MB of L3 cache in total, plus up to 5.6 GHz boost and a 120 W default TDP. It includes basic Radeon graphics; the boxed version has no cooler.

Specifications checked 12 Sept 2026.

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

Manufacturer specifications
WHICH SUITS YOU?

Different designs: Zen 4 vs Zen 5. Their published clocks are listed, but a higher clock across designs does not mean faster.

Choose the 7900X3D for

  • Lower stated default TDP: 120 W vs 170 W

Choose the 9950X3D for

  • More stated CPU cores: 16 vs 12
  • Higher stated thread count: 32 vs 24
  • Higher stated L2 cache: 16 MB vs 12 MB
Built from verified specifications that differ. Not a rating or a recommendation.
See the 16 verified differences
THE CONTENDER

AMD Ryzen 9 9950X3D

AM5 boxed processor 100-100000719WOF · cooler not included

AMD's official boxed-product artwork for Ryzen 9 9950X3D; the exact model is established by its manufacturer page, not a readable model number on the visible box face.
Full product profile Official image
Exact model & source notes

A 16-core, 32-thread Zen 5 processor for AM5 with second-generation 3D V-Cache, giving 128 MB of L3 cache in total, plus up to 5.7 GHz boost and a 170 W default TDP. It is unlocked for overclocking and has basic Radeon graphics; the boxed version has no cooler.

Specifications checked 12 Sept 2026.

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

Manufacturer specifications

7900X3D UK & US retailers

UK
Search Amazon UKSearch eBay UK
US
Search Amazon USSearch eBay US

UK & US price history: no verified listing yet

9950X3D UK & US retailers

UK
Search Amazon UKSearch eBay UK
US
Search Amazon USSearch eBay US

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 SIDE8 topics
SELECTED TOPIC
01 / 08

CPU architecture

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

AMD Ryzen 9 7900X3DZen 4

Manufacturer specification · AMD's CPU core architecture.

Source 1
AMD Ryzen 9 9950X3DZen 5

Manufacturer specification · AMD's CPU core architecture.

Source 1
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 ↓

16 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. 3 manufacturer descriptions restating separately listed fields are grouped below. Missing information stays separate.

Maximum boost clock

In Visual facts
AMD Ryzen 9 7900X3D5.6 GHz
AMD Ryzen 9 9950X3D5.7 GHz
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Peak boost clock, not a sustained all-core speed.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Peak boost clock, not a sustained all-core speed.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

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

3D V-Cache design

In Visual facts
AMD Ryzen 9 7900X3D3D V-Cache
AMD Ryzen 9 9950X3D2nd-generation 3D V-Cache
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD lists 3D V-Cache for this model; it doesn't say how the cache is shared between the core chiplets.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD lists second-generation 3D V-Cache for this model; it doesn't say how the cache is shared between the core chiplets.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Cache placement and design can change even when L3 capacity is equal. The design difference does not quantify gaming performance or operating temperatures.

CPU and memory tuning

In Visual facts
AMD Ryzen 9 7900X3DEXPO, PBO and Curve Optimizer
AMD Ryzen 9 9950X3DUnlocked CPU overclocking; EXPO, PBO and Curve Optimizer
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD lists EXPO memory profiles, Precision Boost Overdrive, Curve Optimizer and Ryzen Master support. Its specification page doesn't list unlocked CPU-multiplier overclocking for this model.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD lists the CPU as unlocked for overclocking, with EXPO memory profiles, Precision Boost Overdrive, Curve Optimizer and Ryzen Master support. Results depend on the motherboard, cooling and the individual chip.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Memory profiles, automatic boost tuning and fully unlocked CPU overclocking are different capabilities. Read the supported controls and motherboard conditions for each processor.

Show 10 more verified differences

Memory support

AMD Ryzen 9 7900X3DDual-channel DDR5 UDIMM; up to 128 GB; DDR5-5200 with two DIMMs or DDR5-3600 with four
AMD Ryzen 9 9950X3DDual-channel DDR5 UDIMM; DDR5-5600 with two DIMMs or DDR5-3600 with four
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD rates two DIMMs (single- or dual-rank) at DDR5-5200 and four at DDR5-3600. Check the motherboard's memory support list; EXPO speeds aren't guaranteed.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD rates two DIMMs (single- or dual-rank) at DDR5-5600 and four DIMMs at DDR5-3600. AMD's pages disagree on maximum capacity (256 GB vs 192 GB); see Maximum memory.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifierAMD Ryzen 9 9950X3D — AMD official shop boxed SKU and image gallery

Check the exact configuration and source conditions for your use.

Memory ceiling with two DIMMs

AMD Ryzen 9 7900X3D5200 MT/s
AMD Ryzen 9 9950X3D5600 MT/s
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Applies to two single-rank or two dual-rank DDR5 modules. EXPO memory overclocking is separate and depends on the motherboard.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Applies to two single-rank or two dual-rank DDR5 modules. EXPO memory overclocking is separate and depends on the motherboard.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Check the exact configuration and source conditions for your use.

Base clock

AMD Ryzen 9 7900X3D4.4 GHz
AMD Ryzen 9 9950X3D4.3 GHz
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's base frequency, not a guaranteed all-core speed under every workload.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's base frequency, not a guaranteed all-core speed under every workload.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

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

Listed instruction capabilities

AMD Ryzen 9 7900X3Dx86-64; AVX-512, AVX2, AVX, AES, AMD-V, FMA3, SHA and SSE extensions
AMD Ryzen 9 9950X3Dx86-64; AES, AVX512, AVX2, AVX, FMA3, MMX-plus, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3 and SSE extensions
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Software and firmware must support these instruction sets.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · This is AMD's own Supported Extensions list for this model, in AMD's order and notation; x86-64 is AMD's listed instruction set. AMD's page for this model does not list AMD-V or SHA, and an extension missing from the list is not stated as absent from the processor. Software and firmware must support the listed extensions.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Only one list names AMD-V and SHA; the other entries are the same in different notation. An extension missing from a manufacturer's list is not stated as absent from the processor.

Maximum junction temperature

AMD Ryzen 9 7900X3D89 °C
AMD Ryzen 9 9950X3D95 °C
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's maximum operating temperature (Tjmax), not a typical running temperature.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's maximum operating temperature (Tjmax), not a typical running temperature.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

This is the specified junction-temperature limit, not a measured operating temperature or a cooling-efficiency score.

Platform NVMe modes

AMD Ryzen 9 7900X3DBoot; RAID 0, 1 and 10
AMD Ryzen 9 9950X3DBoot; RAID 0, 1, 5 and 10
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · The motherboard, drivers and drives must also support these modes, and some boards offer fewer.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · The motherboard, drivers and drives must also support these modes, and some boards offer fewer.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Check the exact configuration and source conditions for your use.

Manufacturer wording of separate fields (3)

Combined manufacturer descriptions whose values are listed as separate differences. Kept here so every verified difference stays in one list.

Base / boost clocks and conditions

AMD Ryzen 9 7900X3D4.4 GHz base; up to 5.6 GHz boost
AMD Ryzen 9 9950X3D4.3 GHz base; up to 5.7 GHz boost
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Maximum boost is not a sustained all-core frequency. Workload, cooling and firmware affect clocks.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Maximum boost is not a sustained all-core frequency. Workload, cooling and firmware affect clocks.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

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

Core count and architecture

AMD Ryzen 9 7900X3D12 cores · Zen 4
AMD Ryzen 9 9950X3D16 cores · Zen 5
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Manufacturer core count and architecture, not an application-performance ranking.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Core count and architecture alone don't determine application performance.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

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

Processor power definitions

AMD Ryzen 9 7900X3D120 W default TDP
AMD Ryzen 9 9950X3D170 W default TDP
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's thermal design rating, not the power the whole system will draw.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's thermal design rating, not the power the whole system will draw.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier

Check the exact configuration and source conditions for your use.

Missing or non-comparable evidence (4)

Maximum supported memory

AMD Ryzen 9 7900X3D128 GB
AMD Ryzen 9 9950X3DConflicting evidence
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's CPU limit; the motherboard, its BIOS and the memory kit must also support this capacity.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

AMD's product page lists 256 GB, but AMD's shop listing for this boxed processor lists 192 GB. If you plan to fit more than 192 GB, check the motherboard's memory support list. · Manufacturer specification

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifierAMD Ryzen 9 9950X3D — AMD official shop boxed SKU and image gallery

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

Manufacturer launch date

AMD Ryzen 9 7900X3D2023-02-28
AMD Ryzen 9 9950X3DNot verified
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's launch date, not a sign of current stock.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

No source recorded for this side.

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

18 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

AMD Ryzen 9 7900X3D

What it brings

  • 12 Zen 4 cores and 24 threads with up to 5.6 GHz boost and 128 MB of L3 cache using AMD 3D V-Cache.
    Manufacturer source
  • Supports EXPO memory profiles, Precision Boost Overdrive and Curve Optimizer, plus PCIe 5.0 (24 usable lanes) and ECC memory on compatible motherboards.
    Manufacturer source

What to check

  • No cooler in the box, and AMD recommends liquid cooling for best performance.
    Manufacturer source
  • Needs an AM5 motherboard whose BIOS supports this processor, plus DDR5 memory; memory is rated at DDR5-5200 with two sticks but only DDR5-3600 with four.
    Manufacturer source
  • AMD doesn't list unlocked CPU-multiplier overclocking for this model; tuning is through PBO, Curve Optimizer and EXPO. Its maximum operating temperature is 89°C.
    Manufacturer source

AMD Ryzen 9 9950X3D

What it brings

  • 16 Zen 5 cores and 32 threads with up to 5.7 GHz boost and 128 MB of L3 cache using second-generation 3D V-Cache.
    Manufacturer source
  • Unlocked for overclocking, with EXPO, Precision Boost Overdrive and Curve Optimizer, plus PCIe 5.0 (24 usable lanes) and ECC memory support on compatible motherboards.
    Manufacturer source

What to check

  • No cooler in the box, and AMD recommends liquid cooling for best performance.
    Manufacturer source
  • Needs an AM5 motherboard whose BIOS supports this processor, plus DDR5 memory; check the board's CPU-support list before buying.
    Manufacturer source
  • Memory is rated at DDR5-5600 with two sticks but only DDR5-3600 with four.
    Manufacturer source
  • AMD's pages disagree on maximum memory: 256 GB on the product page, 192 GB in AMD's shop listing. If you plan to fit more than 192 GB, check the motherboard's memory support list first.
    Manufacturer source Manufacturer source
COMPARE THE DETAILS

Full specifications

How we verify
41 of 41 specifications Sources in each row
Source-backed specifications for AMD Ryzen 9 7900X3D and AMD Ryzen 9 9950X3D
SpecificationAMD Ryzen 9 7900X3DAMD Ryzen 9 9950X3D
Thread countDifferent
Sources
2432
CPU coresDifferent
Sources
1216
Maximum boost clockDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Peak boost clock, not a sustained all-core speed.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Peak boost clock, not a sustained all-core speed.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
5.6 GHz5.7 GHz
CPU architectureDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's CPU core architecture.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's CPU core architecture.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Zen 4Zen 5
Base clockDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's base frequency, not a guaranteed all-core speed under every workload.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's base frequency, not a guaranteed all-core speed under every workload.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
4.4 GHz4.3 GHz
CPU and memory tuningDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD lists EXPO memory profiles, Precision Boost Overdrive, Curve Optimizer and Ryzen Master support. Its specification page doesn't list unlocked CPU-multiplier overclocking for this model.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD lists the CPU as unlocked for overclocking, with EXPO memory profiles, Precision Boost Overdrive, Curve Optimizer and Ryzen Master support. Results depend on the motherboard, cooling and the individual chip.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
EXPO, PBO and Curve OptimizerUnlocked CPU overclocking; EXPO, PBO and Curve Optimizer
CPU boost technology
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Automatic boost, separate from Precision Boost Overdrive and manual overclocking. Clocks vary with workload, cooling and power.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Automatic boost, separate from Precision Boost Overdrive and manual overclocking. Clocks vary with workload, cooling and power.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Precision Boost 2Precision Boost 2
L2 cacheDifferent
Sources
12 MB16 MB
L3 cache
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Total L3 cache across the processor.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Total L3 cache across the processor.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
128 MB128 MB
L1 cacheDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Total L1 cache across all cores.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Total L1 cache across all cores.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
768 KB1280 KB
3D V-Cache designDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD lists 3D V-Cache for this model; it doesn't say how the cache is shared between the core chiplets.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD lists second-generation 3D V-Cache for this model; it doesn't say how the cache is shared between the core chiplets.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
3D V-Cache2nd-generation 3D V-Cache
Memory supportDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD rates two DIMMs (single- or dual-rank) at DDR5-5200 and four at DDR5-3600. Check the motherboard's memory support list; EXPO speeds aren't guaranteed.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD rates two DIMMs (single- or dual-rank) at DDR5-5600 and four DIMMs at DDR5-3600. AMD's pages disagree on maximum capacity (256 GB vs 192 GB); see Maximum memory.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifierAMD Ryzen 9 9950X3D — AMD official shop boxed SKU and image gallery
Dual-channel DDR5 UDIMM; up to 128 GB; DDR5-5200 with two DIMMs or DDR5-3600 with fourDual-channel DDR5 UDIMM; DDR5-5600 with two DIMMs or DDR5-3600 with four
Maximum supported memory
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's CPU limit; the motherboard, its BIOS and the memory kit must also support this capacity.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

AMD's product page lists 256 GB, but AMD's shop listing for this boxed processor lists 192 GB. If you plan to fit more than 192 GB, check the motherboard's memory support list. · Manufacturer specification

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifierAMD Ryzen 9 9950X3D — AMD official shop boxed SKU and image gallery
128 GBConflicting sources
Memory ceiling with two DIMMsDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Applies to two single-rank or two dual-rank DDR5 modules. EXPO memory overclocking is separate and depends on the motherboard.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Applies to two single-rank or two dual-rank DDR5 modules. EXPO memory overclocking is separate and depends on the motherboard.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
5200 MT/s5600 MT/s
Memory ceiling with four DIMMs
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Applies to four single-rank or four dual-rank DDR5 modules; slower than the two-module rating.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Applies to four single-rank or four dual-rank DDR5 modules; slower than the two-module rating.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
3600 MT/s3600 MT/s
CPU ECC memory capability
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Needs a motherboard and memory that support ECC.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Needs a motherboard and memory that support ECC.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
YesYes
Memory channels
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Memory channels in the processor, not the number of motherboard DIMM slots.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Memory channels in the processor, not the number of motherboard DIMM slots.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
22
Socket
Sources
AM5AM5
Native PCIe
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Native CPU version and lane totals, not graphics-slot width or motherboard slot count. Actual links depend on the motherboard and installed devices.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · CPU PCIe version and total/usable lanes, not the number of motherboard slots. Actual links depend on the motherboard and installed devices.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
PCIe 5.0 · 28 total / 24 usable lanesPCIe 5.0 · 28 total / 24 usable lanes
Platform checks
Sources
Supported AM5 motherboard and DDR5 memory required. Check the motherboard CPU-support list and BIOS before purchase.AM5 motherboard and DDR5 memory required. Check the motherboard CPU-support list and BIOS before purchase.
CPU-native USB capability
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · USB provided by the processor itself; the motherboard decides which ports, including any USB4, are actually fitted.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · USB provided by the processor itself; the motherboard decides which ports, including any USB4, are actually fitted.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
4 USB 10 Gb/s ports; 1 USB 2.0 port4 USB 10 Gb/s ports; 1 USB 2.0 port
Platform NVMe modesDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · The motherboard, drivers and drives must also support these modes, and some boards offer fewer.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · The motherboard, drivers and drives must also support these modes, and some boards offer fewer.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Boot; RAID 0, 1 and 10Boot; RAID 0, 1, 5 and 10
USB-C DisplayPort Alternate Mode capability
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Needs a motherboard USB-C port wired for display output.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Needs a motherboard USB-C port wired for display output.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
YesYes
Listed supporting chipsets
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Chipset families AMD lists; check the motherboard's CPU-support list and BIOS version.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Chipset families AMD lists; check the motherboard's CPU-support list and BIOS version.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
A620, X670E, X670, B650E, B650, X870E, X870, B840, B850A620, X670E, X670, B650E, B650, X870E, X870, B840, B850
Integrated graphics cores
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Graphics cores in the built-in Radeon graphics.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Graphics cores in the built-in Radeon graphics.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
22
Integrated graphics frequency
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Built-in graphics clock; display outputs depend on the motherboard.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Built-in graphics clock; display outputs depend on the motherboard.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
2200 MHz2200 MHz
Default TDPDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Default TDP, not measured system power.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Default TDP, not measured system power.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
120 W170 W
Cooling
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD doesn't include a cooler with this boxed version; choose one that fits AM5 and the motherboard.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD doesn't include a cooler with this boxed version; choose one that fits AM5 and the motherboard.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Cooler required separately; AMD recommends liquid cooling for optimal performanceCooler required separately; AMD recommends liquid cooling for optimal performance
Maximum junction temperatureDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's maximum operating temperature (Tjmax), not a typical running temperature.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's maximum operating temperature (Tjmax), not a typical running temperature.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
89 °C95 °C
CPU-core manufacturing processDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Manufacturing process for the CPU cores.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Manufacturing process for the CPU cores.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
TSMC 5nm FinFETTSMC 4nm FinFET
I/O-die manufacturing process
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Manufacturing process for the separate I/O die.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Manufacturing process for the separate I/O die.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
TSMC 6nm FinFETTSMC 6nm FinFET
Package die count
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Number of dies in the processor package; not all of them contain CPU cores.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Number of dies in the processor package; not all of them contain CPU cores.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
33
CPU compute die area
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Size of each CPU compute die.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

No source recorded.

71 mm²Not provided
I/O die area
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Size of the I/O die.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

No source recorded.

122 mm²Not provided
Listed instruction capabilitiesDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Software and firmware must support these instruction sets.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · This is AMD's own Supported Extensions list for this model, in AMD's order and notation; x86-64 is AMD's listed instruction set. AMD's page for this model does not list AMD-V or SHA, and an extension missing from the list is not stated as absent from the processor. Software and firmware must support the listed extensions.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
x86-64; AVX-512, AVX2, AVX, AES, AMD-V, FMA3, SHA and SSE extensionsx86-64; AES, AVX512, AVX2, AVX, FMA3, MMX-plus, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3 and SSE extensions
Manufacturer launch date
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's launch date, not a sign of current stock.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

No source recorded.

2023-02-28Not provided
Specification market
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD lists global availability; UK and US stock, box contents and warranty can still vary by seller.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD lists global availability; UK and US stock, box contents and warranty can still vary by seller.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
GlobalGlobal
Manufacturer wording (4)Combined manufacturer rows whose values are listed above as separate fields.
Manufacturer wording for facts listed as separate rows
Core count and architectureDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Manufacturer core count and architecture, not an application-performance ranking.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Core count and architecture alone don't determine application performance.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Restated above as CPU cores, CPU architecture
12 cores · Zen 416 cores · Zen 5
Base / boost clocks and conditionsDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Maximum boost is not a sustained all-core frequency. Workload, cooling and firmware affect clocks.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Maximum boost is not a sustained all-core frequency. Workload, cooling and firmware affect clocks.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Restated above as Base clock, Maximum boost clock
4.4 GHz base; up to 5.6 GHz boost4.3 GHz base; up to 5.7 GHz boost
Processor power definitionsDifferent
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · AMD's thermal design rating, not the power the whole system will draw.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · AMD's thermal design rating, not the power the whole system will draw.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Restated above as Default TDP
120 W default TDP170 W default TDP
Integrated graphics or none
Sources
AMD Ryzen 9 7900X3D

Manufacturer specification · Manufacturer graphics configuration, not a measured gaming result. Display outputs depend on the motherboard.

AMD Ryzen 9 7900X3D — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9950X3D

Manufacturer specification · Manufacturer graphics configuration, not a measured gaming result. Display outputs depend on the motherboard.

AMD Ryzen 9 9950X3D — manufacturer specifications and boxed identifier
Restated above as Integrated graphics cores, Integrated graphics frequency
AMD Radeon Graphics · 2 graphics cores · 2200 MHzAMD Radeon Graphics · 2 graphics cores · 2200 MHz
First product manufacturer sourceSecond product manufacturer source
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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.