CPU Comparison
Intel Xeon 656 Processor vs Intel Xeon w5-2565X
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
Gaming
Virtualization
Efficiency
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.
- Includes Intel AMX for matrix acceleration.
- Suitable for small- to medium-scale inference on CPU.
- For large AI workloads, discrete GPUs or dedicated accelerators are recommended.
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.
- This is a workstation CPU without integrated graphics.
- Gaming performance will be GPU-bound and depend on the discrete card.
- Modern consumer gaming CPUs typically provide better price/performance for gaming.
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
- 18 performance cores with Hyper-Threading.
- 64 PCIe 5.0 lanes for GPUs, NVMe, and accelerators.
- Quad-channel DDR5-4800 ECC with up to 2 TB capacity.
- Intel AMX and AVX-512 for AI and vectorized workloads.
- Workstation-oriented reliability features (ECC, vPro, Intel TME).
Cons
- No integrated graphics.
- High power draw under turbo (up to 288 W).
- Requires W790/LGA4677 platform, which may be expensive.
- Higher cost versus mainstream desktop CPUs for light workloads.
- Locked multiplier status not clearly stated; assume locked unless verified otherwise.
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 w5-2565X
- AMD Ryzen Threadripper 7960XRival
Workstation/HEDT
- AMD Ryzen Threadripper 7970XRival
Workstation/HEDT
- AMD Ryzen 9 9950XRival
Creator/Enthusiast Desktop
- Intel Xeon w9-3495XRival
High-end Workstation
- Compare head-to-headIntel Xeon w7-2595XRival
Mainstream Workstation
Higher core count in the same platform for more heavily threaded workloads.
Compare head-to-head- Intel Xeon w7-2495XAlt
Similar workstation capability on the W790 platform for different core-count configurations.
Lower-cost, high-performance option for workloads that do not require workstation features like ECC or extensive PCIe lanes.
Compare head-to-head
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 capable 18-core workstation chip with strong I/O and memory bandwidth, suited for professionals who value PCIe 5.0 expansion and ECC DDR5. However, efficiency and platform costs make it less appealing versus mainstream desktops for lighter workloads.
Best for: Buy for professional workstations that need multiple high-speed expansion cards, large ECC memory, and sustained multi-core compute.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 656 Processor or Intel Xeon w5-2565X?
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 w5-2565X?
For gaming, the Intel Xeon 656 Processor leads with a gaming performance score of 0/100 among Intel Xeon 656 Processor and Intel Xeon w5-2565X.
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 w5-2565X (288 W).
Do Intel Xeon 656 Processor and Intel Xeon w5-2565X use the same socket?
No. They use different sockets (Intel Xeon 656 Processor: FCLGA4710, Intel Xeon w5-2565X: FCLGA4677), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon 656 Processor has the most cores. Core counts: Intel Xeon 656 Processor (20 cores), Intel Xeon w5-2565X (18 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.