CPU Comparison
Intel Xeon 656 Processor vs Intel Xeon w5-3535X
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.
Outstanding multi-threaded performance for creator and engineering workloads, scaling well with core count and memory bandwidth.
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.
Capable of high-refresh-rate gaming in most titles, but not optimized for gaming; high core count does not translate into higher FPS compared to mainstream gaming 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.
Excellent for running multiple VMs or containers thanks to 40 threads, 8-channel memory, and extensive PCIe connectivity.
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.
High power draw under load offsets some of the performance-per-watt advantage of newer architectures; cooling and power delivery must be carefully designed.
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 and DL Boost accelerate CPU-based inference and some AI workloads
- Not a replacement for dedicated GPUs or accelerators for large models
- Useful for on-prem inference, data preprocessing, and mixed CPU-GPU pipelines
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.
- Strong single-thread clocks up to 4.8 GHz
- Not aimed at gamers; most games cannot leverage 20 cores
- Better suited as a secondary compute node in a gaming/streaming workstation
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
- 20 high-performance cores with Hyper-Threading
- 8-channel DDR5-4800 with up to 4 TB memory support
- 112 PCIe 5.0 lanes for massive expansion
- Intel AMX and AVX-512 for AI and HPC workloads
- Unlocked multiplier for tuning
- Strong multi-threaded performance for professional workloads
Cons
- Very high power draw (300 W base, 360 W turbo)
- Expensive CPU and platform cost
- Requires robust cooling and high-end power supply
- Overkill for gaming and general desktop use
- Limited real-world overclocking headroom due to already aggressive power limits
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 w5-3535X
- AMD Ryzen Threadripper PRO 5995WXRival
Workstation
- AMD Ryzen Threadripper PRO 7985WXRival
Workstation
- Intel Xeon w9-3495XRival
Workstation
- Intel Xeon w7-3455Rival
Workstation
- AMD EPYC 9124Rival
Workstation/Server
- Intel Xeon w5-3435XAlt
Same platform with slightly fewer cores and lower power if you don’t need 20 cores.
- AMD Ryzen Threadripper PRO 5975WXAlt
Higher core count alternative with strong multi-threaded performance if your software scales well.
Better gaming and general desktop performance at lower cost, but with fewer PCIe lanes and memory channels.
Compare head-to-head- AMD Ryzen 9 7950XAlt
More efficient mainstream high-end CPU for mixed workloads if you don’t need 8-channel memory or 112 PCIe lanes.
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 very powerful workstation CPU with excellent multi-threaded performance and massive I/O, but high power draw and premium platform cost make sense only for professional workloads that can leverage its capabilities.
Best for: Professional workstation for rendering, simulation, and multi-GPU workflows where 8-channel memory and 112 PCIe lanes are fully utilized.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 656 Processor or Intel Xeon w5-3535X?
Based on our editorial ratings, the Intel Xeon w5-3535X comes out ahead with a score of 8.8/10. 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 w5-3535X?
For gaming, the Intel Xeon w5-3535X leads with a gaming performance score of 70/100 among Intel Xeon 656 Processor and Intel Xeon w5-3535X.
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 w5-3535X (300 W).
Do Intel Xeon 656 Processor and Intel Xeon w5-3535X use the same socket?
No. They use different sockets (Intel Xeon 656 Processor: FCLGA4710, Intel Xeon w5-3535X: FCLGA4677), so each needs a compatible motherboard.
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.