CPU Comparison
Intel Xeon 6756P-B vs Intel Xeon 6776P-B
A side-by-side comparison of specs, performance and value. The Intel Xeon 6756P-B is a 64-core, 128-thread server processor based on the Granite Rapids-SP architecture, built on Intel’s Intel 3 process and targeted at single-socket servers for AI, virtualization, and dense enterprise workloads.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AMX provides hardware acceleration for INT8 and BF16/FP16 matrix operations.
- Well suited for CPU-based AI inference and prototyping where GPUs are not available.
- MLPerf results for Xeon 6 P-core family show ~1.9x AI inference gains vs 5th Gen Xeon, though not specific to this SKU.
- Intel AMX for BF16/INT8 matrix operations
- DL Boost for AVX-512-based inference
- No integrated GPU-like AI accelerator, but strong CPU-based AI for edge
Content Creation
Gaming
- No integrated graphics; requires a discrete GPU.
- Server-optimized for throughput, not gaming latency or refresh rates.
- Not a target use case for this CPU.
- No integrated graphics and server-focused clocks
- Not validated for client or gaming use cases
- Single-threaded performance optimized for server workloads
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 64 P-cores and 128 threads for highly parallel workloads
- 8-channel DDR5-6400 with very high memory bandwidth
- AMX, QAT, DLB, and DSA accelerators for AI, crypto, and data movement
- 48 PCIe lanes (32 Gen5, 16 Gen4) from the CPU
- Intel 3 process improves density and efficiency vs Intel 7
- Strong platform features like TDX, SGX, and total memory encryption
Cons
- High 325 W TDP requires robust cooling and power delivery
- Single-socket only; no multi-socket scaling
- No integrated graphics; not suitable for headless client use
- Premium price point typical of high-core-count server CPUs
- Platform and motherboard costs are significant compared to client CPUs
Pros
- 72 P-cores / 144 threads for high throughput
- 8-channel DDR5-6400 with up to 2.25 TB memory
- Integrated vRAN Boost, AMX, QAT, DLB, DSA for telco and networking
- 48 PCIe lanes (Gen5 + Gen4) from CPU
- Single-socket BGA5026 simplifies board design for edge appliances
- Strong SPEC CPU2017 & SPECpower results for its class
Cons
- High 325 W TDP requires robust cooling and power design
- Single-socket only; no dual-socket scale-out
- BGA socket is not field-upgradable
- Newer AMD EPYC 8005 series can offer better performance per watt and per dollar in some edge benchmarks
- Limited relevance for client, gaming, or traditional workstation use
Competitors & Alternatives
Intel Xeon 6756P-B
- AMD EPYC 9654Rival
High-End Server / HPC
- AMD EPYC 9554Rival
Mainstream Server
- Compare head-to-headIntel Xeon 6980PRival
High-End Server / AI / HPC
- Intel Xeon 6756E (Sierra Forest)Rival
High-Density E-Core Server
- Intel Xeon 6776P-BRival
Same Platform, Higher Core Count
128 E-cores in a power-optimized form factor for throughput-oriented workloads that do not need P-clocks.
Compare head-to-head- Intel Xeon 6900P SeriesAlt
Higher core counts and more memory/I/O for hyperscale and HPC if you can justify the platform cost and power.
- AMD EPYC 8004 Series (Siena)Alt
Lower-power single-socket server CPUs with good performance per watt for edge and SMB servers.
Intel Xeon 6776P-B
- AMD EPYC 8635P (84-core, Zen 5)Rival
Edge / Telecom
- AMD EPYC 8534P (64-core, Zen 4)Rival
Edge / Telecom
- NVIDIA Grace CPU Superchip (Neoverse N2, 72+72 cores)Rival
Edge / Cloud
- Intel Xeon 6774P (64-core, Granite Rapids-SP, LGA4710)Rival
General Server
- Intel Xeon 6787P (86-core, Granite Rapids-SP, LGA4710)Rival
General Server
- AMD EPYC 8635PAlt
Higher core count (84 vs 72), lower TDP (225 W), and better performance per watt and per dollar in some SPEC benchmarks; strong alternative for vRAN and edge.
- Intel Xeon 6776P (LGA4710)Alt
Same core count and similar clocks but in an LGA socket for dual-socket servers; choose if you need 2S configurations or standard board upgradeability.
- Intel Xeon 6768P-B (64-core, Granite Rapids-D)Alt
Lower core count and slightly lower TDP in the same BGA5026 platform; better fit when 72 cores are overkill.
- Intel Xeon 6774P (LGA4710)Alt
64-core Granite Rapids-SP part with higher all-core turbo and 2S support; good if you prefer a socketed platform and can accept fewer cores.
- NVIDIA Grace CPU SuperchipAlt
Non-x86 but very high core count and memory bandwidth; attractive for greenfield edge/AI stacks that can adopt Arm software.
Our Verdict on Each
A very high-core-count server CPU with strong AI acceleration and massive memory bandwidth, best suited for single-socket consolidation and AI workloads where its power and cost can be justified.
Best for: Single-socket server for AI inference, virtualization, or in-memory databases where 64 cores and 8-channel DDR5 provide a consolidation upgrade over older multi-socket systems.
Read the full reviewA powerful, highly integrated edge SoC with strong multi-threaded throughput and purpose-built accelerators for telco and networking, but its high TDP and single-socket focus limit deployment flexibility compared to newer or more efficient alternatives.
Best for: Building single-socket edge servers for 5G vRAN, RAN, or network appliances where you want Intel x86 with integrated accelerators and high core density.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 6756P-B or Intel Xeon 6776P-B?
Based on our editorial ratings, the Intel Xeon 6756P-B 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 is faster for gaming, Intel Xeon 6756P-B or Intel Xeon 6776P-B?
For gaming, the Intel Xeon 6756P-B leads with a gaming performance score of 40/100 among Intel Xeon 6756P-B and Intel Xeon 6776P-B.
Do Intel Xeon 6756P-B and Intel Xeon 6776P-B use the same socket?
No. They use different sockets (Intel Xeon 6756P-B: FCBGA5026 (LGA4710 socket), Intel Xeon 6776P-B: FCBGA5026), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon 6776P-B has the most cores. Core counts: Intel Xeon 6756P-B (64 cores), Intel Xeon 6776P-B (72 cores).