We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Square green ceramic package with gold contacts and silver heatspreader marked Ryzen 9 9900X3D

AMD

AMD Ryzen 9 9900X3D 12-Core 4.4 GHz Socket AM5 desktop processor

SKU CH-MR14-7TRMG

12-core desktop CPU with 128 MB L3 cache, 5.5 GHz max boost and integrated Radeon graphics

  • Product nameRyzen 9 9900 × 3D
  • CPU cores12-Core
  • CPU socketSocket AM5
  • Maximum turbo clockUp to 5.5 GHz
  • TDP rating120 W
  • Processor classDesktop
  • 12 cores and 24 threads handle heavy multitasking workloads
  • 4 GHz base clock with 5.5 GHz max turbo delivers high single-thread speed
  • 128 MB L3 cache reduces latency for gaming and data tasks
  • Integrated Radeon graphics at 2200 MHz provides display output without a discrete card
  • DDR5 support up to 5600 MHz and 192 GB capacity enables fast, high-capacity memory

12-Core Socket AM5 Desktop Processor

The AMD Ryzen 9 9900X3D delivers 12 cores and 24 threads for demanding desktop workloads. It operates at a 4.4 GHz base frequency with a max turbo frequency up to 5.5 GHz. The processor integrates AMD Radeon Graphics running at 2200 MHz. It fits Socket AM5 motherboards and carries a 120W TDP.

DDR5 Memory Limits By Population

Supported DDR5 speeds depend on how many ranks are installed across the memory channels. Two single-rank or two dual-rank modules run at 5600 MT/s. Four single-rank or four dual-rank modules drop to 3600 MT/s. Maximum addressable memory capacity is 192 GB. ECC memory is supported when the motherboard also supports it.

128MB L3 Cache Defines Gaming Throughput

The 128MB L3 cache is the largest cache size in this product line and directly determines gaming and latency-sensitive performance. Combined with 12MB of L2 cache, it reduces memory accesses for high-frame-rate scenarios. This cache capacity is the primary factor when deciding if this processor matches the workload.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $431.99
Pricier than about 81% of the 494 comparable items (median $149.99).
CPU cores 12-Core
Higher than about 60% of the 271 comparable items (median 8).
Maximum turbo clock Up to 5.5 GHz
Higher than about 85% of the 246 comparable items (median 4.7 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAMD
Product lineRyzen 9 9000 Series
Model name100-100001368WOZ
Product nameRyzen 9 9900 × 3D
Performance
Working frequency4.4 GHz
Processor
CPU cores12-Core
CPU socketSocket AM5
Maximum turbo clockUp to 5.5 GHz
TDP rating120 W
Processor classDesktop
Processor codenameGranite Ridge (Zen 5)
CPU threads24-Threads
L1 cache size960 KB
Level 2 cache12 MB
Level 3 cache128 MB
Process nodeTSMC 4 nm FinFET
Max PCIe lanes28 Total / 24 Usable
Memory
Supported memoryMax Memory Speed:
- 2 × 1R DDR5-5600–2 × 2R DDR5-5600–4 × 1R DDR5-3600–4 × 2R DDR5-3600
Memory limit192 GB
ECC memoryYes (Requires mobo support)
Graphics
Built-in graphicsAMD Radeon Graphics
GPU base clock2200 MHz
Ports & slots
PCIe generation5.0
Compatibility
Compatible desktop chipsetsAMD A620 / AMD B650 / AMD B650E / AMD B840 / AMD B850 / AMD X670 / AMD X670E / AMD X870 / AMD X870E
Compatible systemsWindows 11–64-Bit Edition , Windows 10–64-Bit Edition , RHEL x86 64-Bit , Ubuntu x86 64-Bit
More details
Multimedia instructionAES, AMD-V, AVX512, AVX2, AVX, FMA3, MMX-plus, SHA, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3, SSE, x86-64
Advanced technologiesAMD EXPO Technology, AMD Ryzen Technologies

Questions about this item

Should I choose the 12-core 9900X3D or a different Ryzen 9 9000 model?

The 9900X3D provides 12 cores and 24 threads with 128 MB L3 cache and a 5.5 GHz max turbo, while other 9000-series SKUs vary in core count, cache size and boost clocks.

What does the 5.5 GHz max turbo mean once the CPU is installed?

It is the highest single-core frequency the processor can reach under load when power, thermal and current limits allow; sustained all-core speeds will sit lower.

Which memory standard does the AM5 socket cap at, and what speeds are supported?

The memory controller supports DDR5 up to 5600 MT/s with two single-rank modules, dropping to 3600 MT/s when four modules are populated.

More in Desktop Processors

Similar items