CPUServerReleased Mar 15, 2021

AMD EPYC 7663

56C/112T · 3.5 GHz · 240 W

The EPYC 7663 is a 56-core, 112-thread third-generation EPYC (Milan) processor launched on March 15, 2021. It enables seven cores on each of its eight compute dies with the full 256 MB of L3 cache, within a 240 W default TDP configurable down to 225 W. It sits between the 48-core EPYC 7643 and the 64-core EPYC 7713 for dense virtualization and cloud servers.

General

Manufacturer: AMD
Model: AMD EPYC 7663
Segment: Server
Generation: EPYC 7003 (Milan)
Codename: Milan
Architecture: x86_64
Microarchitecture: Zen 3
Release date: Mar 15, 2021
Price: $6,366Search on Amazon

Cores & clocks

Cores / threads: 56 cores / 112 threads
Base clock: 2.00 GHz
Boost clock: 3.50 GHz
TDP (design W): 240 W
Unlocked: ✕ No
L2 cache: 28 MB
L3 cache: 256 MB
Technology (nm): 7 nm
TSMC 7 nm (compute dies), GlobalFoundries 14 nm (I/O die)

Platform

Socket: SP3
2-CPU (multi-socket): ✓ Yes
Up to 2 sockets
Integrated GPU: None
Memory type: DDR4-3200
8-channel
Memory size: Up to 4,096 GB
ECC memory: ✓ Yes
PCIe: PCIe 4.0 (128 lanes)

Instructions & AI

Instruction extensions: MMXSSESSE2SSE3SSSE3SSE4.1SSE4.2SSE4AAVXAVX2FMA3AESVAESSHAAMD-V
NPU: None

OS support

Windows: Windows 10Windows 11 24H2Windows 11 25H2Windows 11 26H2
Linux: UbuntuFedoraArch Linux
Notes: Listed by model on Microsoft's Windows 10 22H2 and Windows 11 24H2 supported AMD processor lists. The Windows 11 25H2 list covers the AMD EPYC 7003 Series as a whole; 26H2 keeps the 25H2 requirements.