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Intel Xeon Platinum 8475B

48C/96T · 3.8 GHz · 350 W

The Xeon Platinum 8475B is a 48-core, 96-thread 4th Gen Xeon Scalable (Sapphire Rapids) processor for dual-socket servers. It is an off-roadmap custom model for large-scale customers and is not listed in Intel's public product database. Its 2.7 GHz base clock is unusually high for a 48-core part, and it reaches a 3.2 GHz all-core turbo and 3.8 GHz single-core turbo, with 97.5 MB of L3 cache and a 350 W TDP.

General

Manufacturer
Intel
Model
Intel Xeon Platinum 8475B
Segment
Server
Generation
4th Gen Xeon Scalable (Sapphire Rapids)
Codename
Sapphire Rapids-SP
Architecture
x86_64
Microarchitecture
Golden Cove
Release date
—
Price
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Cores & clocks

Cores / threads
48 cores / 96 threads
Base clock
2.70 GHz
Boost clock
3.80 GHz
TDP (design W)
350 W
Unlocked
✕ No
L2 cache
96 MB
L3 cache
97.5 MB
Technology (nm)
7 nm
Intel 7

Platform

Socket
FCLGA4677
2-CPU (multi-socket)
✓ Yes
Up to 2 sockets
Integrated GPU
None
Memory type
DDR5-4800
8-channel
Memory size
Up to 4,096 GB
ECC memory
✓ Yes
PCIe
PCIe 5.0 (80 lanes)

Instructions & AI

Instruction extensions
SSE4.2AVXAVX2AVX-512AVX-512 VNNI (Intel DL Boost)Intel AMXAES-NI
NPU
None

OS support

Windows
Windows 11 24H2Windows 11 25H2Windows 11 26H2
Linux
UbuntuFedoraArch Linux
Notes
Microsoft lists 4th Generation Xeon Scalable processors as supported for Windows 11 versions 24H2 and 25H2; Microsoft has not published a separate list for 26H2, so the 25H2 status is carried over. The Windows 10 22H2 list stops at 3rd Generation Xeon Scalable. Server deployments typically run Windows Server or enterprise Linux; Sapphire Rapids is supported by mainstream Linux distributions.

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