CPUDesktopReleased Feb 2, 2026

Intel Xeon 678X

48C/96T · 4.9 GHz · 300 W

The Xeon 678X is a 48-core, 96-thread processor from Intel's Xeon 600 workstation lineup (Granite Rapids-WS), launched on February 2, 2026 and sold both in OEM workstations and as a boxed retail processor. It sits below the 64-core 696X and 86-core 698X, with eight-channel DDR5-6400 or MRDIMM-8000 memory, 128 PCIe 5.0 lanes and AMX acceleration for AI workloads, and as an X-series model it is unlocked for overclocking.

General

Manufacturer
Intel
Model
Intel Xeon 678X
Segment
Desktop
Generation
Xeon 6 (Granite Rapids-WS)
Codename
Granite Rapids-WS
Architecture
x86_64
Microarchitecture
Redwood Cove
Release date
Feb 2, 2026
Price
$4,129Search on Amazon

Cores & clocks

Cores / threads
48 cores / 96 threads
Base clock
2.40 GHz
Boost clock
4.90 GHz
TDP (design W)
300 W
Max: 360 W
Unlocked
✓ Yes
L2 cache
—
L3 cache
192 MB
Technology (nm)
3 nm
Intel 3

Platform

Socket
FCLGA4710
2-CPU (multi-socket)
✕ No
Integrated GPU
None
Memory type
DDR5-6400 (RDIMM), MRDIMM-8000
8-channel
Memory size
Up to 4,096 GB
ECC memory
✓ Yes
PCIe
PCIe 5.0 (128 lanes)

Instructions & AI

Instruction extensions
SSE4.1SSE4.2AVX2AVX-512AMXAES-NIVT-xVT-d
NPU
None

OS support

Windows
Windows 11 24H2Windows 11 25H2Windows 11 26H2
Notes
Microsoft's Windows 11 24H2 and 25H2 supported-processor lists both name the Intel Xeon 600 Processors for Workstation. No separate 26H2 list has been published, so the 25H2 status is carried over.

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