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Intel Xeon Platinum 8279W

28C/56T · 4.6 GHz · 205 W

A 28-core, 56-thread off-roadmap Xeon Platinum from the second-generation Xeon Scalable (Cascade Lake-SP) family, not listed in Intel's public price list. It runs at 2.5 GHz base with a 3.2 GHz all-core turbo and up to 4.6 GHz in a 205 W TDP, with 38.5 MB of L3 cache and six channels of DDR4-2933 memory.

General

Manufacturer: Intel
Model: Intel Xeon Platinum 8279W
Segment: Server
Generation: 2nd Gen Xeon Scalable (Cascade Lake-SP)
Codename: Cascade Lake-SP
Architecture: x86_64
Microarchitecture: Cascade Lake
Release date: —
Price: Search on Amazon

Cores & clocks

Cores / threads: 28 cores / 56 threads
Base clock: 2.50 GHz
Boost clock: 4.60 GHz
TDP (design W): 205 W
Unlocked: ✕ No
L2 cache: 28 MB
L3 cache: 38.5 MB
Technology (nm): 14 nm
14 nm

Platform

Socket: FCLGA3647
2-CPU (multi-socket): —
Integrated GPU: None
Memory type: DDR4-2933
6-channel
Memory size: —
ECC memory: ✓ Yes
PCIe: PCIe 3.0 (48 lanes)

Instructions & AI

Instruction extensions: Intel SSE4.2Intel AVXIntel AVX2Intel AVX-512Intel DL Boost (VNNI)
NPU: None

OS support

Windows: Windows 10Windows 11 24H2Windows 11 25H2Windows 11 26H2
Linux: UbuntuFedoraArch Linux
Notes: Microsoft lists the 2nd Generation Intel Xeon Scalable family in the supported-processor lists for Windows 11 24H2 and 25H2 and for Windows 10 22H2; Microsoft has not published a separate 26H2 list, and the 25H2 entries still apply. Windows 11 additionally requires TPM 2.0 and UEFI Secure Boot on the platform. Server deployments normally run Windows Server or an enterprise Linux distribution.

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