CPU Comparison
Intel Xeon 6766P-B vs Intel Xeon 6776P-B
A side-by-side comparison of specs, performance and value. The Intel Xeon 6766P-B is a 64-core, 128-thread server SoC from the Granite Rapids-D family, designed for single-socket networking, edge, and vRAN platforms with eight-channel DDR5-6400, integrated accelerators, and 48 PCIe 5.0/4.0 lanes in a 305 W BGA package.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AMX and AVX-512 with FP16 provide strong CPU-based inference for edge AI models.
- No integrated GPU or dedicated AI accelerator beyond the CPU matrix engine.
- Best suited for inference and smaller batch workloads at the edge rather than large-scale training.
- 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 and no official validation for gaming workloads.
- Not designed or marketed for gaming; use cases are server, networking, and edge.
- Any gaming use would be dependent on discrete GPU and is not a target scenario.
- 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 in a single-socket SoC.
- Eight-channel DDR5-6400 with up to 2.25 TB capacity.
- 48 PCIe lanes with Gen5/Gen4 for NICs, storage, and accelerators.
- Integrated vRAN Boost, QAT, DLB, and DSA reduce need for discrete cards.
- AMX and AVX-512 with FP16 accelerate edge AI and media workloads.
- BGA5026 package reduces board complexity and component count.
Cons
- 305 W TDP demands robust cooling and power delivery.
- Locked multiplier and BGA package eliminate overclocking and easy upgrades.
- Single-socket only; no multi-socket scalability.
- Per-core frequency is lower than high-frequency Xeon Gold/Platinum or EPYC alternatives.
- Not intended for client or gaming workloads; no integrated GPU.
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 6766P-B
- Intel Xeon 6776P-BRival
Single-socket edge/networking SoC
- Intel Xeon 6768P-BRival
Single-socket edge/networking SoC
- AMD EPYC 9474FRival
General-purpose 1P/2P server
- AMD EPYC 9654PRival
High-core-count 1P/2P server
- AMD EPYC Embedded 9654PRival
Embedded / edge server
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 highly integrated, core-dense Xeon SoC aimed squarely at single-socket edge and telecom platforms, where its mix of 64 P-cores, DDR5-6400 bandwidth, and built-in accelerators can replace multiple discrete components and simplify platforms.
Best for: Single-socket 5G vRAN, UPF, or edge security appliances where core density, integrated accelerators, and DDR5 bandwidth matter more than peak per-core frequency.
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 6766P-B or Intel Xeon 6776P-B?
Based on our editorial ratings, the Intel Xeon 6766P-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 6766P-B or Intel Xeon 6776P-B?
For gaming, the Intel Xeon 6776P-B leads with a gaming performance score of 20/100 among Intel Xeon 6766P-B and Intel Xeon 6776P-B.
Which uses less power?
The Intel Xeon 6766P-B has the lowest rated TDP. Power draw across these chips: Intel Xeon 6766P-B (305 W), Intel Xeon 6776P-B (325 W).
Do Intel Xeon 6766P-B and Intel Xeon 6776P-B use the same socket?
No. They use different sockets (Intel Xeon 6766P-B: FCBGA5026 (BGA, soldered to board), 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 6766P-B (64 cores), Intel Xeon 6776P-B (72 cores).