CPUServerReleased Oct 10, 2024

AMD EPYC 9755

128C/256T · 4.1 GHz · 500 W

The EPYC 9755 is the flagship 128-core, 256-thread model of AMD's 5th Gen EPYC 9005 series (code name Turin), launched on October 10, 2024, and the highest-core-count part in the series to use full-size Zen 5 cores. They are spread over sixteen core chiplets with eight cores each, giving 512 MB of L3 cache, the most in the 9005 series, and the processor runs at 2.7 GHz base and up to 4.1 GHz boost on all cores. It offers twelve channels of DDR5-6400 memory and 128 PCIe 5.0 lanes on the SP5 platform and supports single- and dual-socket servers. The default TDP is 500 W, configurable between 450 W and 500 W. An EPYC Embedded 9755 version is offered for embedded and storage systems.

General

Manufacturer: AMD
Model: AMD EPYC 9755
Segment: Server
Generation: EPYC 9005 (Turin)
Codename: Turin
Architecture: x86_64
Microarchitecture: Zen 5
Release date: Oct 10, 2024
Price: $12,984Search on Amazon

Cores & clocks

Cores / threads: 128 cores / 256 threads
Base clock: 2.70 GHz
Boost clock: 4.10 GHz
TDP (design W): 500 W
Max: 500 W
Unlocked: ✕ No
L2 cache: 128 MB
L3 cache: 512 MB
Technology (nm): 4 nm
TSMC N4X

Platform

Socket: SP5
2-CPU (multi-socket): ✓ Yes
Up to 2 sockets
Integrated GPU: None
Memory type: DDR5-6400
12-channel
Memory size: —
ECC memory: ✓ Yes
PCIe: PCIe 5.0 (128 lanes)

Instructions & AI

Instruction extensions: SSE4.2SSE4AAVXAVX2FMA3AVX-512 (VNNIBF16)AES-NISHA
NPU: None

OS support

Windows: Windows 11 24H2Windows 11 25H2Windows 11 26H2
Linux: UbuntuFedoraArch Linux
Notes: Listed by model on Microsoft's Windows 11 24H2 supported AMD processor list, and the Windows 11 25H2 list covers the AMD EPYC 9005 Series; 26H2 keeps the 25H2 requirements. The EPYC 9005 Series is not on the Windows 10 22H2 supported processor list. Servers with this processor normally run Windows Server or an enterprise Linux distribution.