CPU Comparison
AMD Ryzen Threadripper PRO 9965WX vs Intel Xeon w9-3575X
A side-by-side comparison of specs, performance and value. The AMD Ryzen Threadripper PRO 9965WX is a 24-core, 48-thread Zen 5 workstation processor on the sTR5/WRX90 platform, offering the highest base clock in the Threadripper PRO 9000 WX lineup, 8-channel DDR5-6400 ECC RDIMM support, and up to 128 PCIe 5.0 lanes for GPU and NVMe expansion.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Dominant in multi‑threaded productivity workloads, especially rendering, compilation, and scientific computing, with strong generational uplift over 7965WX.
Very strong multi-threaded performance for content creation and engineering workloads, with Puget’s W-3500 review showing ~10–15% gains over previous-generation Xeon W-3400 in many heavily threaded tasks.
Gaming
Capable of high refresh‑rate gaming at 4K with a modern GPU, but not optimized for gaming; power and platform cost are hard to justify for pure gaming builds.
Not a gaming CPU; capable of high refresh-rate gameplay but significantly outperformed by modern gaming-focused desktop CPUs at much lower power.
Virtualization
Excellent for running multiple VMs thanks to high core count, large memory capacity, and extensive virtualization features.
Excellent for multi-VM workloads thanks to 44 cores, 8-channel memory, and VT-x/VT-d/VT-rp support, though AMD Threadripper PRO often leads at the top end.
Efficiency
High 350 W TDP and typical workstation power draw mean efficiency is not a strength; best suited for always‑on workstations with robust cooling.
High power consumption (340 W base, up to 408 W turbo) makes it relatively inefficient compared to newer architectures, requiring robust cooling and power delivery.
Specialized Performance
AI / ML
- No dedicated NPU or matrix accelerator like some client chips
- Strong AVX‑512 and FP throughput benefits CPU‑based inference and HPC
- For serious AI training, multi‑GPU systems are still preferred
- Intel AMX and AVX-512 provide strong CPU-based AI inference and HPC potential.
- No dedicated AI accelerator like a discrete GPU or NPU, so large-scale training still requires GPUs.
- Well-suited for inference, scientific computing, and some HPC workloads that can leverage AMX/BF16.
Content Creation
Gaming
- Strong single‑thread clocks help keep frame times low in CPU‑bound titles
- Platform cost and power are overkill for gaming‑only builds
- Better suited as a do‑everything workstation that also games
- Single-thread performance is good, but not class-leading compared to modern gaming CPUs.
- Very high power and platform cost for a gaming-focused build.
- Best used as a workstation CPU that also games, not the reverse.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Highest base clock in Threadripper PRO 9000 WX lineup (4.2 GHz)
- 8‑channel DDR5‑6400 ECC RDIMM with up to 2 TB capacity
- 128 native PCIe 5.0 lanes for multi‑GPU and NVMe expansion
- Strong generational uplift over 7965WX in multi‑threaded workloads
- Full AMD PRO feature set with ECC, RAS, and enterprise virtualization
- AVX‑512 and 512‑bit datapath for HPC and AI workloads
Cons
- High 350 W TDP and cooling requirements
- Expensive CPU and platform compared to mainstream desktop parts
- Overkill for gaming or light productivity
- Limited motherboard ecosystem (WRX90/TRX50/Pro 695 only)
- No integrated graphics; discrete GPU required
Pros
- 44 cores and 88 threads for heavily parallel workloads
- 112 PCIe 5.0 lanes for multi-GPU and high-speed storage
- 8-channel DDR5-4800 with up to 4 TB capacity
- Intel AMX and AVX-512 for AI and HPC
- Unlocked multiplier for overclocking on W790
- Strong workstation RAS features (ECC, vPro Enterprise, VT-rp)
Cons
- Very high power consumption (340 W base, up to 408 W turbo)
- Expensive CPU and platform (W790 motherboard, 8-channel DDR5)
- No integrated graphics; discrete GPU required
- Outperformed by AMD Threadripper PRO 7000 WX in many multi-threaded workloads
- Limited upgrade path beyond the Xeon W-3500 family on this platform
Competitors & Alternatives
AMD Ryzen Threadripper PRO 9965WX
- Compare head-to-headIntel Xeon w7-3565XRival
Workstation
- Compare head-to-headIntel Xeon w9-3575XRival
Workstation
- Compare head-to-headIntel Xeon w5-3535XRival
Workstation
- Compare head-to-headAMD Ryzen Threadripper PRO 9975WXRival
Workstation
- AMD Ryzen Threadripper PRO 7965WXRival
Workstation
Lower core count but higher base clock and lower price if you don’t need 24 cores.
Compare head-to-headSimilar 24‑core count on TRX50 with quad‑channel memory, for users who don’t need PRO features or 8‑channel RAM.
Compare head-to-head- High‑end Ryzen 9 9950X desktopAlt
Much cheaper gaming/creator build if you don’t need workstation IO or ECC.
Intel Xeon w9-3575X
- Intel Xeon w9-3475XRival
Workstation
- Intel Xeon w9-3495XRival
Workstation
- Compare head-to-headIntel Xeon w9-3595XRival
Workstation
- AMD Ryzen Threadripper PRO 7975WXRival
Workstation
- AMD Ryzen Threadripper PRO 7995WXRival
Workstation
- Intel Core Ultra 9 285K or similar high-end desktop CPUAlt
Much cheaper and more efficient for gaming and light content creation, but with fewer cores and fewer PCIe lanes; best when you don’t need workstation-class I/O.
Our Verdict on Each
A workstation‑class 24‑core CPU that balances high base clocks with massive IO and memory bandwidth, ideal for professionals who need frequency and expandability more than raw core count.
Best for: Professional workstation where high base clocks, massive IO, and ECC memory matter more than extreme core counts: CAD, real‑time editing, code compilation, local AI inference, and multi‑GPU rendering.
Read the full reviewA potent workstation CPU with excellent multi-threaded performance and massive I/O, but high power consumption and cost limit its appeal to users who genuinely need 44 cores and 112 PCIe lanes.
Best for: High-end single-socket workstation for 3D rendering, engineering simulation, or AI inference where you need 44+ cores and 112 PCIe lanes but not the absolute top core count.
Read the full reviewFrequently Asked Questions
Which is better, AMD Ryzen Threadripper PRO 9965WX or Intel Xeon w9-3575X?
Based on our editorial ratings, the AMD Ryzen Threadripper PRO 9965WX comes out ahead with a score of 9.1/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which is faster for gaming, AMD Ryzen Threadripper PRO 9965WX or Intel Xeon w9-3575X?
For gaming, the Intel Xeon w9-3575X leads with a gaming performance score of 70/100 among AMD Ryzen Threadripper PRO 9965WX and Intel Xeon w9-3575X.
Which uses less power?
The Intel Xeon w9-3575X has the lowest rated TDP. Power draw across these chips: AMD Ryzen Threadripper PRO 9965WX (350 W), Intel Xeon w9-3575X (340 W).
Do AMD Ryzen Threadripper PRO 9965WX and Intel Xeon w9-3575X use the same socket?
No. They use different sockets (AMD Ryzen Threadripper PRO 9965WX: sTR5, Intel Xeon w9-3575X: FCLGA4677), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon w9-3575X has the most cores. Core counts: AMD Ryzen Threadripper PRO 9965WX (24 cores), Intel Xeon w9-3575X (44 cores).
Which is faster in multi-core benchmarks?
The Intel Xeon w9-3575X posts the highest multi-core benchmark score. Multi-core results: AMD Ryzen Threadripper PRO 9965WX (927), Intel Xeon w9-3575X (85,000). Benchmark figures are approximate and workload-dependent.