AMD® Ryzen™ Threadripper PRO 9945WX
The AMD Ryzen Threadripper PRO 9945WX is a desktop processor released on July 23, 2025, built on the Zen 5 architecture using a 4 nm process. It has 12 cores and 24 threads, a base clock of 4.70 GHz, a maximum boost of 5.40 GHz, 64 MB of L3 cache, a 350 W TDP and the sTR5 socket.
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Overview
SummaryThe AMD Ryzen Threadripper PRO 9945WX is a desktop processor with 12 cores and 24 threads, built on the Zen 5 architecture (4 nm process). It launched in Jul 2025. Clocks run from 4.7 GHz base to 5.4 GHz boost. A 64-MB L3 cache backs the cores (6.4 MB per core). It supports DDR5 memory. The chip drops into the sTR5 socket and exposes PCIe 5.0. Rated TDP is 350 W. Notable platform capabilities: AVX-512, AVX-VNNI, AMD-V (Hardware Virtualization), AMD SEV.
Performance
12 metricsThe AMD Ryzen Threadripper PRO 9945WX scores 4,566 in single-core performance and 56,125 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 16,008 for overall performance, 42,874 for productivity performance, 39,088 for creator performance, 61,036 for engineering performance and 27,729 for gaming performance. Its multi-core throughput works out to 4,677 per core, 2,339 per thread and 160 per watt. Its computed efficiency index is 856. Its performance index is 198, so its overall performance is 98% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.
How these scores are computed
Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.
- Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
- Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
- Creator performance is 0.55 times multi-core plus 1.8 times single-core.
- Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
- Gaming performance is 3 times single-core plus 0.25 times multi-core.
- Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
- The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
- The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.
Workload Benchmarks
8 workloadsScores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.
In the individual workload tests the AMD Ryzen Threadripper PRO 9945WX scores 182,356 in integer math, 114,107 in floating-point math, 682,294 in compression, 35,339 in cryptography, 5,035 in physics simulation, 55,658 in vector SIMD, 349 in the prime sieve and 80,998 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 210% above in integer math, 149% above in floating-point math, 199% above in compression, 208% above in cryptography, 362% above in physics simulation, 259% above in vector SIMD, 421% above in the prime sieve and 258% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.
Core Configuration
5 specsThe AMD Ryzen Threadripper PRO 9945WX has 12 physical cores and runs 24 logical threads. It runs 2 threads per core. It runs at a base clock of 4.70 GHz and boosts up to 5.40 GHz.
Architecture & Generation
9 specsThe AMD Ryzen Threadripper PRO 9945WX is a desktop processor, belongs to the AMD Threadripper PRO family, uses the Zen 5 architecture, carries the codename Shimada Peak and is manufactured on a 4 nm process. It launched in Jul 2025.
Cache
6 specsThe AMD Ryzen Threadripper PRO 9945WX has 960 KB of L1 cache, 12 MB of L2 cache and 64 MB of L3 cache. That adds up to about 76.9 MB of cache, or 6.41 MB per core. Each core has 1 MB of private L2 cache.
Cache Hierarchy
3 levelsThe AMD Ryzen Threadripper PRO 9945WX has a 3-level cache hierarchy: L1 at 960 KB, L2 at 12 MB and L3 at 64 MB. L3 is the largest level and makes up about 83% of the cache listed here.
Memory Support
6 specsThe AMD Ryzen Threadripper PRO 9945WX supports DDR5 memory, uses 8 memory channels and runs memory at up to 6,400 MT/s. It does not support DDR4 and LPDDR memory.
Graphics
1 specThe AMD Ryzen Threadripper PRO 9945WX does not include integrated graphics, so a discrete graphics card is required for display output.
Platform & Compatibility
2 specsThe AMD Ryzen Threadripper PRO 9945WX uses the sTR5 socket and supports PCI Express 5.0.
Power & Thermals
1 specThe AMD Ryzen Threadripper PRO 9945WX has a rated TDP of 350 W.
Platform Capabilities
50 supported, 0 not supportedInstruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.
Instruction Sets
38 supportedSecurity and Reliability
3 supportedVirtualization
4 supportedOS Compatibility
5 supportedThe AMD Ryzen Threadripper PRO 9945WX supports AES-NI, AVX-512, AVX2, AVX, AVX-VNNI, FMA, SHA, VAES, x86-64-v4, 64-bit (x86-64), BMI1, BMI2, CLMUL, F16C, GFNI, PCLMULQDQ, RDRAND, RDSEED, SSE4.1, SSE4.2, x86-64-v3, ABM, ADX, CMPXCHG16B, FXSR, Invariant TSC, LZCNT, POPCNT, RDTSCP, SSE, SSE2, SSE3, SSSE3, x86-64-v2, XSAVE, XSAVEOPT, MMX and MOVBE among its instruction set features. Feex has no record for CET and FMA3, which is different from being unsupported.
The AMD Ryzen Threadripper PRO 9945WX supports AMD SEV, AMD SME and Execute Disable (NX) among its security features. Feex has no record for Control-flow Enforcement (CET), Memory Encryption, SMAP and SMEP, which is different from being unsupported.
The AMD Ryzen Threadripper PRO 9945WX supports AMD SVM, AMD-V (Hardware Virtualization), NPT / RVI and IOMMU among its virtualization features. Feex has no record for Second-Level Address Translation, which is different from being unsupported.
Feex records the AMD Ryzen Threadripper PRO 9945WX as Docker / Hyper-V ready, Linux KVM ready, Windows 11 eligible, Android emulator ready and WSL2 ready.
Physical & Manufacturing
1 specThe AMD Ryzen Threadripper PRO 9945WX is manufactured by TSMC.
Naming & Aliases
5 specsThe AMD Ryzen Threadripper PRO 9945WX is also identified by the model number PRO 9945WX and the SKU 100-000000726.
Real-world compute in the Feex fleet
No machines yetNo Feex fleet machines with the AMD Ryzen Threadripper PRO 9945WX have reported compute telemetry yet, so real-world compute for this processor is not recorded.
Data Coverage
58% recordedFeex has recorded 58% of the specifications it tracks for the AMD Ryzen Threadripper PRO 9945WX. Values Feex does not hold are shown as "Not recorded" rather than estimated.
Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth and ECC Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Launch Price. Naming & Aliases: Processor Number and Part Number.
Common questions
12 answeredHow many cores and threads does the AMD Ryzen Threadripper PRO 9945WX have?
The AMD Ryzen Threadripper PRO 9945WX has 12 cores and 24 threads.
What architecture does the AMD Ryzen Threadripper PRO 9945WX use?
The AMD Ryzen Threadripper PRO 9945WX is built on the Zen 5 architecture on a 4 nm process.
Does the AMD Ryzen Threadripper PRO 9945WX have integrated graphics?
No. The AMD Ryzen Threadripper PRO 9945WX does not include integrated graphics.
What socket does the AMD Ryzen Threadripper PRO 9945WX use?
The AMD Ryzen Threadripper PRO 9945WX uses the sTR5 socket.
What memory does the AMD Ryzen Threadripper PRO 9945WX support?
The AMD Ryzen Threadripper PRO 9945WX supports DDR5 across 8 channels.
How fast does the AMD Ryzen Threadripper PRO 9945WX run?
The AMD Ryzen Threadripper PRO 9945WX can boost up to 5.4 GHz, with a 4.7 GHz base clock.
What is the TDP of the AMD Ryzen Threadripper PRO 9945WX?
The AMD Ryzen Threadripper PRO 9945WX has a TDP of 350 W.
How does the AMD Ryzen Threadripper PRO 9945WX perform?
In the Feex normalized performance dataset, the AMD Ryzen Threadripper PRO 9945WX scores 56,125 multi-core and 4,566 single-core.
What advanced capabilities does the AMD Ryzen Threadripper PRO 9945WX support?
Notable platform capabilities reported for the AMD Ryzen Threadripper PRO 9945WX include AVX-512, AVX-VNNI, AMD-V (Hardware Virtualization), AMD SEV.
What is the AMD Ryzen Threadripper PRO 9945WX best for?
Based on its specifications, the AMD Ryzen Threadripper PRO 9945WX is well suited for High-FPS gaming & low-latency tasks, Daily productivity & development.
How much cache does the AMD Ryzen Threadripper PRO 9945WX have?
The AMD Ryzen Threadripper PRO 9945WX has 960 KB of L1 cache, 12288 KB of L2 cache and 64 MB of L3 cache.
How does the AMD Ryzen Threadripper PRO 9945WX compare with the Intel Core i5-12400?
The AMD Ryzen Threadripper PRO 9945WX has a computed performance index of 198, which is 98% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.