CPU Comparison
Intel Xeon 6556P-B vs Intel Xeon 6737P
A side-by-side comparison of specs, performance and value. The Intel Xeon 6556P-B is a 36-core, 72-thread server SoC from the Granite Rapids-D family, built on Intel 3 process for networking and edge appliances, with integrated vRAN Boost, QAT, DLB and DSA accelerators, DDR5-6400 memory and 48 PCIe 5.0/4.0 lanes in a BGA4368 package.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AMX and DL Boost accelerate INT8/BF16 inference
- Xeon 6 SoC family claims up to 4.3x inference speed vs older Xeon D-2899NT on some models
- Best used with small to medium models; large training still GPU-bound
- Intel AMX with BF16/INT8 support accelerates deep learning inference
- Two AVX-512 FMA units per core benefit vectorized AI and HPC kernels
- No dedicated AI accelerator; heavy AI training still better suited to GPUs
Content Creation
Gaming
- No integrated graphics
- Optimized for server and network workloads, not gaming
- Gaming not a design target
- Server processor not targeted at gaming
- No integrated graphics
- No official gaming benchmarks
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 36 P-cores with 72 threads provide strong multi-threaded performance for RAN and edge AI
- Integrated vRAN Boost, QAT, DLB and DSA reduce need for discrete offload cards
- DDR5-6400 and 4 memory channels deliver high bandwidth and capacity for edge workloads
- 48 PCIe 5.0/4.0 lanes support high-speed NICs and NVMe storage
- Intel 3 process and SoC integration improve performance-per-watt vs older Xeon D
- Rich security features including TDX, total memory encryption, SGX and crypto acceleration
Cons
- 215 W TDP is high for some edge environments
- BGA4368 socket limits reuse to proprietary or highly specialized boards
- No integrated graphics; not suitable for graphical workloads
- Niche market focus means fewer consumer-oriented boards and less community support
- Pricing is high compared to general-purpose server CPUs with similar core counts
Pros
- 32 high-performance P-cores with 4 GHz max turbo
- Intel AMX and dual AVX-512 FMA units for AI and HPC
- 88 PCIe 5.0 lanes with CXL 2.0 platform support
- 8-channel DDR5-6400 up to 4 TB per socket
- Rich accelerator set (QAT, DLB, DSA, IAA) offloads crypto, analytics, and streaming
- Granite Rapids-SP platform with UPI 2.0 for coherent dual-socket designs
Cons
- High 270 W TDP requires robust cooling and power design
- Platform and CPU cost are significant compared to previous-gen Xeons
- Locked multiplier limits enthusiast-style overclocking
- No integrated graphics; not suitable for headless or lightweight client use
- Full performance potential depends on server firmware and OS support for Speed Select and accelerators
Competitors & Alternatives
Intel Xeon 6556P-B
- AMD EPYC 8324P (32-core, 180–225 W)Rival
Edge / telco server
- AMD EPYC 8434P (48-core, 200 W)Rival
Edge / telco server
- Intel Xeon 6553P-B (36-core, 235 W)Rival
Networking and edge SoC
- Intel Xeon D-2899NT (22-core, 135 W)Rival
Previous-gen edge SoC
- Intel Xeon 6563P-B (38-core, 235 W)Rival
Networking and edge SoC
- AMD EPYC 8324PAlt
Lower TDP range (155–225 W) and SP6 platform with similar edge/telco focus; good alternative where power efficiency matters more than integrated accelerators.
Same Granite Rapids-D family with slightly higher clocks (2.6 GHz base, 4 GHz turbo) and same core count if you need more frequency headroom.
Compare head-to-head- Intel Xeon D-2899NTAlt
Lower power (135 W) and mature platform if you don’t need DDR5, PCIe 5.0 or the latest accelerators.
- Intel Xeon 6546P-B (32-core, 195 W)Alt
Lower core count and TDP for less demanding edge workloads while staying in the same Granite Rapids-D ecosystem.
- AMD EPYC 8434PAlt
Higher core count (48) with similar telco/edge focus if you need more threads and can accommodate a slightly higher TDP.
Intel Xeon 6737P
- AMD EPYC 7573XRival
Server (32-core, Milan-X)
- AMD EPYC 9384XRival
Server (Genoa-X, 32-core)
- Intel Xeon Gold 6448YRival
Server (4th Gen Xeon Scalable, 32-core)
- Intel Xeon Gold 6438MRival
Server (4th Gen Xeon Scalable, 32-core)
- Intel Xeon 6730PRival
Server (Xeon 6700P, 32-core, lower turbo)
Same 32-core Granite Rapids-SP family with higher 4.2 GHz turbo for slightly better per-thread performance.
Compare head-to-headLower 2.5 GHz base and 245 W TDP for slightly better power efficiency at reduced peak clocks.
Compare head-to-head
Our Verdict on Each
A highly integrated edge SoC that brings strong multi-threaded performance and dedicated accelerators for networking and AI workloads, but with high power and a niche platform that limits broader reuse.
Best for: Building or specifying 5G vRAN, edge AI or network security appliances where integrated accelerators and high core count reduce total system complexity.
Read the full reviewA strong Xeon 6 P-core SKU for two-socket servers that need high per-core performance, AMX acceleration, and plenty of PCIe 5.0 connectivity, though its 270 W TDP and platform cost demand careful power and cooling planning.
Best for: Dual-socket servers running virtualization, in-memory databases, or mixed AI/HPC workloads that can leverage AMX and high PCIe 5.0 lane counts.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 6556P-B or Intel Xeon 6737P?
Based on our editorial ratings, the Intel Xeon 6737P comes out ahead with a score of 8.7/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which uses less power?
The Intel Xeon 6556P-B has the lowest rated TDP. Power draw across these chips: Intel Xeon 6556P-B (215 W), Intel Xeon 6737P (270 W).
Do Intel Xeon 6556P-B and Intel Xeon 6737P use the same socket?
No. They use different sockets (Intel Xeon 6556P-B: FCBGA4368, Intel Xeon 6737P: FCLGA4710), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon 6556P-B has the most cores. Core counts: Intel Xeon 6556P-B (36 cores), Intel Xeon 6737P (32 cores).