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Intel Xeon Gold 6249C

26C/52T

A 26-core, 52-thread off-roadmap Xeon Gold from the second-generation Xeon Scalable (Cascade Lake-SP) family, built for OEM and cloud customers rather than sold through Intel's public price list. It has a 2.6 GHz base clock and 35.75 MB of L3 cache; its turbo frequencies and TDP have not been published.

General

Manufacturer
Intel
Model
Intel Xeon Gold 6249C
Segment
Server
Generation
2nd Gen Xeon Scalable (Cascade Lake-SP)
Codename
Cascade Lake-SP
Architecture
x86_64
Microarchitecture
Cascade Lake
Release date
—
Price
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Cores & clocks

Cores / threads
26 cores / 52 threads
Base clock
2.60 GHz
Boost clock
—
TDP (design W)
—
Unlocked
✕ No
L2 cache
26 MB
L3 cache
35.8 MB
Technology (nm)
14 nm
14 nm

Platform

Socket
FCLGA3647
2-CPU (multi-socket)
✓ Yes
Up to 4 sockets
Integrated GPU
None
Memory type
DDR4-2933
6-channel
Memory size
Up to 1,024 GB
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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