CPU Comparison
Intel Xeon 656 Processor vs Intel Xeon w9-3595X
A side-by-side comparison of specs, performance and value. The Intel Xeon 656 is a 20-core, 40-thread workstation processor based on the Granite Rapids-WS architecture, built on Intel 3 and aimed at professional compute, simulation, and AI development workloads in a single-socket platform.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Strong multi‑threaded workstation performance for rendering, simulation, and data workloads, but exact scores depend on workload and are not yet verified by independent reviews.
Multi-threaded throughput is excellent, especially in rendering and simulation. Some professional workloads show modest uplift over the prior W-3400 generation depending on optimization and threading.
Gaming
Not a target segment; no verified gaming benchmarks yet. Expect competent but not class‑leading gaming performance due to high core count and lower prioritization on single‑thread gains vs client CPUs.
Virtualization
Good single‑socket VM density thanks to 20 cores and 40 threads, but enterprise reviewers have not yet published consolidated virtualization benchmarks for this SKU.
High core count, ECC support, and VT-x/VT-d make it very strong for VM consolidation.
Efficiency
210 W base / 252 W max turbo power is competitive for a 20‑core workstation part on Intel 3, but real efficiency versus AMD Threadripper alternatives is not yet quantified in independent reviews.
Performance per watt lags newer AMD workstation CPUs; 385 W base and 462 W turbo require substantial cooling.
Specialized Performance
AI / ML
- Intel AMX with FP16/BF16/INT8 and VNNI accelerates inference and light training on CPU.
- Not a replacement for dedicated accelerators but strong for CPU‑only AI prototyping and edge inference.
- Performance relative to Threadripper PRO and older Xeon W parts still awaits independent benchmarks.
- Intel AMX accelerates matrix operations for AI inference and training on CPU.
- Intel Deep Learning Boost (VNNI) supported.
- Lacks integrated NPU; relies on CPU and GPU acceleration.
Content Creation
Gaming
- No integrated graphics; requires discrete GPU.
- High core count and turbo frequencies are helpful, but not optimized for gaming specifically.
- Modern high‑refresh gaming is better served by client‑oriented CPUs.
- Single-core boost is competitive but many mainstream desktop CPUs match or exceed it at far lower power.
- No integrated graphics means a discrete GPU is mandatory.
- Not designed or optimized for gaming; professional workloads are the target.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 20 P‑cores / 40 threads for consistent multi‑threaded performance.
- 128 PCIe 5.0 lanes – among the highest I/O counts in a workstation CPU.
- 8‑channel DDR5‑6400 support with up to 4 TB capacity.
- Intel AMX with FP16/BF16/INT8 for AI inference and analytics.
- Unlocked multiplier for tuning in workstation and enthusiast builds.
- Modern platform (W890, LGA4710) with PCIe 5.0 and DDR5.
Cons
- No integrated graphics – requires discrete GPU.
- 210–252 W power envelope demands robust cooling and PSU.
- L2 and total cache sizes are not fully disclosed by Intel.
- New platform; early adopters face premium pricing and potentially immature firmware.
- Competing Threadripper PRO parts may offer better per‑core or memory bandwidth in some workloads.
Pros
- 60 Performance-cores and 120 threads for massive parallelism.
- 112 PCIe 5.0 lanes for extensive expansion.
- Eight-channel DDR5-4800 ECC with up to 4 TB capacity.
- Unlocked multiplier for performance tuning.
- Intel AMX and DL Boost for AI acceleration.
- Intel vPro Enterprise and remote management features.
- Turbo Boost Max 3.0 up to 4.8 GHz on favored cores.
- VT-x/VT-d virtualization support.
Cons
- High power draw: 385 W base and 462 W max turbo require serious cooling.
- No integrated graphics.
- Single-threaded performance lower than many desktop CPUs.
- W790/LGA4677 platform has limited long-term upgrade path.
- Strong competition from AMD’s Threadripper PRO line in many creator workloads.
Competitors & Alternatives
Intel Xeon 656 Processor
- AMD Ryzen Threadripper PRO 7965WXRival
Workstation
- AMD Ryzen Threadripper 7960XRival
HEDT / Workstation
- Compare head-to-headIntel Xeon w7‑2595XRival
Workstation
- Compare head-to-headIntel Xeon w9‑3595XRival
Workstation
- AMD Ryzen Threadripper PRO 9965WXRival
Workstation
- Intel Xeon 654Alt
Similar Granite Rapids-WS platform with 18 cores and slightly higher base clock; better if you don’t need all 20 cores.
- Intel Xeon 638Alt
16‑core Granite Rapids-WS SKU with lower TDP; better if power efficiency matters more than maximum throughput.
Intel Xeon w9-3595X
- AMD Ryzen Threadripper PRO 7995WXRival
Workstation
- AMD Ryzen Threadripper PRO 5995WXRival
Workstation
- AMD Ryzen Threadripper PRO 7985WXRival
Workstation
- Intel Xeon w9-3495XRival
Workstation
- Compare head-to-headIntel Core i9-14900KRival
High-End Desktop
- AMD Ryzen Threadripper 7960XAlt
Strong multi-threaded performance on TRX50 with lower cost if you can forgo WRX90 enterprise features.
Our Verdict on Each
A strong mid‑range Granite Rapids-WS workstation CPU with excellent I/O and memory bandwidth, best suited for professionals who need serious multi‑threaded performance without stepping up to 30+ core SKUs.
Best for: Professional workstation builds where you need 20+ cores, 128 PCIe 5.0 lanes, and 8‑channel DDR5 but don’t require the highest‑core Granite Rapids SKUs.
Read the full reviewA top-end workstation processor with massive core count and I/O expansion, ideal for well-threaded pro workloads, but it demands serious power and cooling and faces strong competition from AMD’s Threadripper PRO line.
Best for: Professional workstations for rendering, simulation, AI development, or multi-GPU setups where Intel’s platform features and software ecosystem are preferred.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 656 Processor or Intel Xeon w9-3595X?
Based on our editorial ratings, the Intel Xeon 656 Processor comes out ahead with a score of 8.6/10. 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, Intel Xeon 656 Processor or Intel Xeon w9-3595X?
For gaming, the Intel Xeon 656 Processor leads with a gaming performance score of 0/100 among Intel Xeon 656 Processor and Intel Xeon w9-3595X.
Which uses less power?
The Intel Xeon 656 Processor has the lowest rated TDP. Power draw across these chips: Intel Xeon 656 Processor (210 W), Intel Xeon w9-3595X (385 W).
Do Intel Xeon 656 Processor and Intel Xeon w9-3595X use the same socket?
No. They use different sockets (Intel Xeon 656 Processor: FCLGA4710, Intel Xeon w9-3595X: FCLGA4677), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon w9-3595X has the most cores. Core counts: Intel Xeon 656 Processor (20 cores), Intel Xeon w9-3595X (60 cores).
Which is faster in multi-core benchmarks?
The Intel Xeon 656 Processor posts the highest multi-core benchmark score. Multi-core results: Intel Xeon 656 Processor (0). Benchmark figures are approximate and workload-dependent.