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PROCESSORS · YOUR NEXT FACE-OFF

AMD Ryzen 7 7700X vs AMD Ryzen 9 9900X3D

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

Compared products

YOUR FIRST CHOICE

AMD Ryzen 7 7700X

AM5 boxed processor 100-100000591WOF · cooler not included

AMD's official boxed-product artwork associated with Ryzen 7 7700X 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

An 8-core, 16-thread Zen 4 processor for AM5 with up to 5.4 GHz boost, 32 MB of L3 cache and a 105 W default TDP. It is unlocked for overclocking and includes basic Radeon integrated 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 Ryzen 7 7700X for

  • Lower stated default TDP: 105 W vs 120 W

Choose the Ryzen 9 9900X3D for

  • More stated CPU cores: 12 vs 8
  • Higher stated thread count: 24 vs 16
  • Higher stated L3 cache: 128 MB vs 32 MB
Built from verified specifications that differ. Not a rating or a recommendation.
See the 15 verified differences
THE CONTENDER

AMD Ryzen 9 9900X3D

AM5 boxed processor 100-100001368WOF · cooler not included

AMD's official boxed-product artwork associated with Ryzen 9 9900X3D on its exact manufacturer shop 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 5 processor for AM5 with second-generation 3D V-Cache, giving 128 MB of L3 cache in total, plus up to 5.5 GHz boost and a 120 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

Ryzen 7 7700X UK & US retailers

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

UK & US price history: no verified listing yet

Ryzen 9 9900X3D 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 SIDE7 topics
SELECTED TOPIC
01 / 07

CPU architecture

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

AMD Ryzen 7 7700XZen 4

Manufacturer specification · AMD's CPU core architecture.

Source 1
AMD Ryzen 9 9900X3DZen 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 ↓

15 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 7 7700X5.4 GHz
AMD Ryzen 9 9900X3D5.5 GHz
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Show 9 more verified differences

Memory support

In Visual facts
AMD Ryzen 7 7700XDual-channel DDR5 UDIMM; up to 128 GB; DDR5-5200 with two DIMMs or DDR5-3600 with four
AMD Ryzen 9 9900X3DDual-channel DDR5 UDIMM; DDR5-5600 with two DIMMs or DDR5-3600 with four
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and gallery

Check the exact configuration and source conditions for your use.

Memory rate with two DIMMs

AMD Ryzen 7 7700X5200 MT/s
AMD Ryzen 9 9900X3D5600 MT/s
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers

Check the exact configuration and source conditions for your use.

Cooling

AMD Ryzen 7 7700XCooler required separately; AMD recommends a premium air cooler for optimal performance
AMD Ryzen 9 9900X3DCooler required separately; AMD recommends liquid cooling for optimal performance
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

Check the exact configuration and source conditions for your use.

Base clock

AMD Ryzen 7 7700X4.5 GHz
AMD Ryzen 9 9900X3D4.4 GHz
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Base frequency; boost clocks are listed separately.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

NVMe boot and RAID capability

AMD Ryzen 7 7700XBoot; RAID 0, 1 and 10
AMD Ryzen 9 9900X3DBoot; RAID 0, 1, 5 and 10
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

Check the exact configuration and source conditions for your use.

Package die count

AMD Ryzen 7 7700X2
AMD Ryzen 9 9900X3D3
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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 7 7700X4.5 GHz base; up to 5.4 GHz boost
AMD Ryzen 9 9900X3D4.4 GHz base; up to 5.5 GHz boost
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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 7 7700X8 cores · Zen 4
AMD Ryzen 9 9900X3D12 cores · Zen 5
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Processor power definitions

AMD Ryzen 7 7700X105 W default TDP
AMD Ryzen 9 9900X3D120 W default TDP
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

Check the exact configuration and source conditions for your use.

Missing or non-comparable evidence (10)

3D V-Cache design

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3D2nd-generation 3D V-Cache
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers

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

Maximum supported memory

AMD Ryzen 7 7700X128 GB
AMD Ryzen 9 9900X3DConflicting evidence
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and gallery

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

Integrated graphics cores

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3D2
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Integrated graphics frequency

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3D2200 MHz
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Listed instruction capabilities

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3Dx86-64; AES, AMD-V, AVX512, AVX2, AVX, FMA3, MMX-plus, SHA, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3 and SSE extensions
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

Manufacturer specification · AMD's complete Supported Extensions list for this model, in AMD's order and notation; x86-64 is AMD's listed instruction set. Software and firmware must support them.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Manufacturer launch date

AMD Ryzen 7 7700X2022-09-27
AMD Ryzen 9 9900X3DNot verified
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

No source recorded for this side.

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

Memory channels

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3D2
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Native CPU USB capability

AMD Ryzen 7 7700X4 USB 10 Gb/s ports; 1 USB 2.0 port
AMD Ryzen 9 9900X3DConflicting evidence
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

AMD's product page lists four USB4 40 Gb/s ports and one USB 5 Gb/s port, while AMD's shop listing shows four USB 10 Gb/s ports and one USB 2.0 port. Check the motherboard's own USB specification. · Manufacturer specification

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and gallery

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

Specification market

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3DGlobal
Sources
AMD Ryzen 7 7700X

No source recorded for this side.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers

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

Comparable sustained workload performance

AMD Ryzen 7 7700XNot verified
AMD Ryzen 9 9900X3DNot verified
Sources
AMD Ryzen 7 7700X

AMD doesn't publish sustained game or application benchmarks for this processor. · Manufacturer specification · No independent sustained game, application or power-mode measurements are available from these sources, so no overall performance winner is shown.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

No source recorded for this side.

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

12 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

AMD Ryzen 7 7700X

What it brings

  • 8 Zen 4 cores and 16 threads, boosting up to 5.4 GHz, with 32 MB of L3 cache.
    Manufacturer source
  • Unlocked for overclocking, with EXPO memory profiles, Precision Boost Overdrive and Curve Optimizer.
    Manufacturer source
  • PCIe 5.0 with 24 usable lanes, up to 128 GB of DDR5, ECC memory support on compatible motherboards and basic Radeon graphics (2 graphics cores) for display output.
    Manufacturer source

What to check

  • No cooler in the box; with a 105 W default TDP, AMD recommends a premium air cooler 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 DDR5-5200 with two sticks but only DDR5-3600 with four.
    Manufacturer source

AMD Ryzen 9 9900X3D

What it brings

  • 12 Zen 5 cores and 24 threads with up to 5.5 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) and on the processor's native USB ports. If you plan to fit more than 192 GB, check the motherboard's memory support list, and go by the motherboard's own USB specification.
    Manufacturer source Manufacturer source
COMPARE THE DETAILS

Full specifications

How we verify
40 of 40 specifications Sources in each row
Source-backed specifications for AMD Ryzen 7 7700X and AMD Ryzen 9 9900X3D
SpecificationAMD Ryzen 7 7700XAMD Ryzen 9 9900X3D
Thread countDifferent
Sources
1624
CPU coresDifferent
Sources
812
Maximum boost clockDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
5.4 GHz5.5 GHz
CPU architectureDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · AMD's CPU core architecture.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

Manufacturer specification · AMD's CPU core architecture.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Zen 4Zen 5
Base clockDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Base frequency; boost clocks are listed separately.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
4.5 GHz4.4 GHz
CPU and memory tuning
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers
Unlocked CPU overclocking; EXPO, PBO and Curve OptimizerUnlocked CPU overclocking; EXPO, PBO and Curve Optimizer
Automatic boost technology
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Automatic boost, separate from PBO and manual tuning; not an all-core frequency.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Precision Boost 2Precision Boost 2
L2 cacheDifferent
Sources
8 MB12 MB
L3 cacheDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Total L3 cache across the processor.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

Manufacturer specification · Total L3 cache across the processor.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
32 MB128 MB
L1 cacheDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Total L1 cache across all cores.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

Manufacturer specification · Total L1 cache across all cores.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
512 KB960 KB
3D V-Cache design
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers
Not provided2nd-generation 3D V-Cache
Memory supportDifferent
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and 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 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and gallery
128 GBConflicting sources
Memory rate with two DIMMsDifferent
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers
5200 MT/s5600 MT/s
Memory rate with four DIMMs
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
3600 MT/s3600 MT/s
CPU ECC memory capability
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
YesYes
Memory channels
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Not provided2
Socket
Sources
AM5AM5
Native PCIe
Sources
AMD Ryzen 7 7700X

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 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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 9900X3D — exact manufacturer specifications and part identifiers
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.Supported AM5 motherboard and DDR5 memory required. Check the motherboard CPU-support list and BIOS before purchase.
Listed platform chipsets
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
A620, B650, B650E, X670, X670E, X870, X870E, B840, B850A620, X670E, X670, B650E, B650, X870E, X870, B840, B850
Native CPU USB capability
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

AMD's product page lists four USB4 40 Gb/s ports and one USB 5 Gb/s port, while AMD's shop listing shows four USB 10 Gb/s ports and one USB 2.0 port. Check the motherboard's own USB specification. · Manufacturer specification

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiersAMD Ryzen 9 9900X3D — AMD shop exact boxed SKU, supplied cooling and gallery
4 USB 10 Gb/s ports; 1 USB 2.0 portConflicting sources
NVMe boot and RAID capabilityDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Boot; RAID 0, 1 and 10Boot; RAID 0, 1, 5 and 10
CPU USB-C DisplayPort capability
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
YesYes
Integrated graphics or none
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
AMD Radeon Graphics · 2 graphics cores · 2200 MHzAMD Radeon Graphics · 2 graphics cores · 2200 MHz
Integrated graphics cores
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Not provided2
Integrated graphics frequency
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Not provided2200 MHz
Default TDPDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Default TDP, not measured system power.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

Manufacturer specification · Default TDP, not measured system power.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
105 W120 W
CoolingDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Cooler required separately; AMD recommends a premium air cooler for optimal performanceCooler required separately; AMD recommends liquid cooling for optimal performance
Maximum junction temperature
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
95 °C95 °C
CPU-core manufacturing processDifferent
Sources
AMD Ryzen 7 7700X

Manufacturer specification · Manufacturing process for the CPU cores.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

Manufacturer specification · Manufacturing process for the CPU cores.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
TSMC 5nm FinFETTSMC 4nm FinFET
I/O-die manufacturing process
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
TSMC 6nm FinFETTSMC 6nm FinFET
Package die countDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
23
Manufacturer launch date
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

No source recorded.

2022-09-27Not provided
Listed instruction capabilities
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

Manufacturer specification · AMD's complete Supported Extensions list for this model, in AMD's order and notation; x86-64 is AMD's listed instruction set. Software and firmware must support them.

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Not providedx86-64; AES, AMD-V, AVX512, AVX2, AVX, FMA3, MMX-plus, SHA, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3 and SSE extensions
Specification market
Sources
AMD Ryzen 7 7700X

No source recorded.

AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Not providedGlobal
Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.
Specifications without verified values for either product
Comparable sustained workload performance
Sources
AMD Ryzen 7 7700X

AMD doesn't publish sustained game or application benchmarks for this processor. · Manufacturer specification · No independent sustained game, application or power-mode measurements are available from these sources, so no overall performance winner is shown.

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

No source recorded.

Not listed by the manufacturerNot provided
Manufacturer wording (3)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 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Restated above as CPU cores, CPU architecture
8 cores · Zen 412 cores · Zen 5
Base / boost clocks and conditionsDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Restated above as Base clock, Maximum boost clock
4.5 GHz base; up to 5.4 GHz boost4.4 GHz base; up to 5.5 GHz boost
Processor power definitionsDifferent
Sources
AMD Ryzen 7 7700X

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

AMD Ryzen 7 7700X — exact manufacturer specifications and part identifiers
AMD Ryzen 9 9900X3D

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

AMD Ryzen 9 9900X3D — exact manufacturer specifications and part identifiers
Restated above as Default TDP
105 W default TDP120 W default TDP
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.