Intel Xeon 6787P (Granite Rapids-SP, 86-core, 8-channel DDR5 host CPU)

Fields

id

accelerators/intel-xeon-6787p-granite-rapids

Vendor

intel

Architecture

Redwood Cove (Granite Rapids-SP, Xeon 6, LGA 4710)

Release year

2025

Process (nm)

3

Form factors

Memory type

DDR5-6400 RDIMM, 8 channels (MRDIMM supported; ARK max speed 8000 MT/s)

Memory bandwidth (GB/s)

409.6

Bandwidth basis

DERIVED, not a printed Intel bandwidth. ARK lists 8 memory channels and DDR5-6400. 8 x 8 x 6.4 = 409.6 GB/s theoretical peak per socket at 1 DPC. The ARK memory-types line also mentions MRDIMM and a maximum speed of 8000 MT/s; that higher rate is not stored because the MLPerf Dell R770 row is explicitly 6400 MT/s (16x64GB).

TDP (W)

350

Unified memory

yes

Consumer part

no

notes

86-core Granite Rapids-SP, 8 channels not 12. This is the cheaper socket (LGA 4710, 2S) and the one a reader comparing against a 12-channel Genoa should not conflate with 6980P. MLPerf v6.1 Dell PowerEdge R770 2S 6787P, 16x64GB DDR5-6400, vLLM, FP8 KV cache: llama3.1-8b INT8 1227.99 tok/s Offline / 516.012 tok/s Server, aggregate across both sockets. Supermicro SYS-422GB-NRT 2S lands within 4% (1189.89 / 516.059). vram_gb null (ARK max 4 TB).

Notes

86-core Granite Rapids-SP, 8 channels not 12. This is the cheaper socket (LGA 4710, 2S) and the one a reader comparing against a 12-channel Genoa should not conflate with 6980P. MLPerf v6.1 Dell PowerEdge R770 2S 6787P, 16x64GB DDR5-6400, vLLM, FP8 KV cache: llama3.1-8b INT8 1227.99 tok/s Offline / 516.012 tok/s Server, aggregate across both sockets. Supermicro SYS-422GB-NRT 2S lands within 4% (1189.89 / 516.059). vram_gb null (ARK max 4 TB).

Cross-references

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