Intel Xeon 6781P
Expert rating8.9 / 10
- Brand:
- Intel
- Form Factor:
- Server & Enthusiast
- CPU Socket:
- LGA 4710
- Core/Thread Count:
- 80C/160T
- TDP:
- 400W
- Core Type:
- Performance
- CPU Series:
- Xeon 6
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Manufacturer: Intel Last updated: 2026-09-11
Intel Xeon 6781P Review
Intel Xeon 6781P 80-core 160-thread server processor, 2.0GHz base / 3.4GHz boost, 400W TDP, 160MB L3 cache, Granite Rapids, LGA 4710 socket
The Intel Xeon 6781P is the sole 80-core Granite Rapids P-core part in this catalog, sitting between the 64-core and 86-core tiers as a distinct step on Intel's LGA 4710 core-count ladder.
Performance and Architecture
With 80 cores and 160 threads, the Intel Xeon 6781P is built on Intel's Granite Rapids generation, using performance (P-core) silicon at 2.0GHz base clock boosting to 3.4GHz, backed by 160MB of L3 cache.
Platform and Memory
The Intel Xeon 6781P uses the LGA 4710 platform in a 1S/2S configuration, supporting 8-channel memory up to 2TB (8-channel DDR5-6400). It fills the gap between the 64-core and 86-core LGA 4710 P-core parts in Intel's Xeon 6 stack.
Comparison to Alternatives
Within the Xeon 6 lineup in this catalog, the Xeon 6781P is the only 80-core LGA 4710 SKU, sitting between the 64-core 6760P/6761P/6767P/6768P group and the 86-core 6787P/6788P pair. Against AMD's high-core-count EPYC parts in this catalog, it competes on Intel's AMX/CXL platform features and mature software ecosystem.
Specifications
Identity
| Product Line | Xeon |
|---|---|
| Model Number | 6781P |
| Codename | Granite Rapids |
| Release Year | 2024 |
Segment and platform
| Market Segment | Server |
|---|---|
| Microarchitecture | Granite Rapids |
| Socket | Other |
| Socket | 1S/2S |
| Socket Status | Current |
| Process Node | 3 nm |
Core configuration
| Total Cores | 80 |
|---|---|
| Performance Cores | 80 |
| Efficiency Cores | 0 |
| Total Threads | 160 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 2.0 GHz |
|---|---|
| P-Core Boost Clock | 3.4 GHz |
| Unlocked Multiplier | No |
Cache
| L3 Cache | 160 MB |
|---|
Power and thermal
| Base Power | 400 W |
|---|
Memory
| Memory Type | DDR5 |
|---|---|
| Memory Channels | 8 |
| Max Memory Capacity | 2048 GB (8-channel DDR5-6400) |
| Max Memory Capacity | 2048 GB |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | No |
|---|---|
| Copilot Plus Certified | No |
Expansion
| PCIe Generation | PCIe 5.0 |
|---|
| Form Factor | Server & Enthusiast |
|---|---|
| TDP | 400 W |
Measured results
SPEC CPU 2017
Best published result on spec.org as of 23 Sept 2026.
| SPECrate® 2017 Integer (base) | 775 |
Cores 80 · Tested in H3C UniServer R4900 G7 (Intel Xeon 6781P) · Published by New H3C Technologies Co., Ltd., Aug-2025
Full disclosure on spec.org| SPECrate® 2017 Floating Point (base) | 879 |
Cores 80 · Tested in H3C UniServer R4900 G7 (Intel Xeon 6781P) · Published by New H3C Technologies Co., Ltd., Aug-2025
Full disclosure on spec.orgSPEC®, SPECrate® and SPECspeed® are registered trademarks of the Standard Performance Evaluation Corporation. Copied by permission of the Standard Performance Evaluation Corporation (SPEC). Results retrieved from www.spec.org on 23 Sept 2026.
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.9 / 10
The Intel Xeon 6781P is the unique 80-core step in Intel's LGA 4710 Xeon 6 stack, bridging the 64-core and 86-core tiers.
Best for
- High-density virtualization
- Enterprise databases
- HPC and technical computing
Not for
- Small business servers
- Power-constrained edge deployments
- Budget-conscious builds
FAQs
What are the key specifications of the Intel Xeon 6781P?
The Intel Xeon 6781P is a processor from Intel. Key specs: Cores 80, Threads 160, Base Clock 2.0 GHz, Boost Clock 3.4 GHz, L3 Cache 160.
Will the Intel Xeon 6781P work with my current setup?
The Intel Xeon 6781P lists Socket is LGA 4710. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Intel Xeon 6781P best suited to?
It suits high-density virtualization, enterprise databases, hpc and technical computing.
What are the drawbacks of the Intel Xeon 6781P?
It is a poor fit for small business servers, power-constrained edge deployments, budget-conscious builds.