AMD
CPUDesktopReleased Nov 25, 2019

AMD Ryzen Threadripper 3960X

24C/48T · 4.5 GHz · 280 W

The Ryzen Threadripper 3960X is a 24-core, 48-thread high-end desktop processor from AMD's third Threadripper generation (Castle Peak), announced on November 7, 2019 at $1,399 and released on November 25, 2019. It combines four Zen 2 chiplets with six active cores each and a 12 nm I/O die, and together with the 3970X it introduced the sTRX4 socket and TRX40 platform, which is not compatible with earlier X399 motherboards but adds PCIe 4.0 throughout.

General

Manufacturer
AMD
Model
AMD Ryzen Threadripper 3960X
Segment
Desktop
Generation
Threadripper 3000
Codename
Castle Peak
Architecture
x86_64
Microarchitecture
Zen 2
Release date
Nov 25, 2019
Price
$1,399Search on Amazon

Cores & clocks

Cores / threads
24 cores / 48 threads
Base clock
3.80 GHz
Boost clock
4.50 GHz
TDP (design W)
280 W
Unlocked
✓ Yes
L2 cache
12 MB
L3 cache
128 MB
Technology (nm)
7 nm
TSMC N7 (CCD) + GF 12 nm (IOD)

Platform

Socket
sTRX4
2-CPU (multi-socket)
✕ No
Integrated GPU
None
Memory type
DDR4-3200
4-channel
Memory size
Up to 256 GB
ECC memory
✓ Yes
PCIe
PCIe 4.0 (64 lanes, 56 usable)

Instructions & AI

Instruction extensions
SSESSE2SSE3SSSE3SSE4.1SSE4.2SSE4AAVXAVX2FMA3AES-NISHAAMD-Vx86-64
NPU
None

OS support

Windows
Windows 10Windows 11 25H2Windows 11 26H2
Linux
UbuntuFedoraArch Linux
Notes
AMD supported Windows 10 64-bit and Linux for this processor. Microsoft's Windows 11 24H2 supported-processor list includes only the Threadripper PRO models of this generation, but the 25H2 list names the Ryzen Threadripper 3000 Series, so Windows 11 is officially supported from 25H2; no separate 26H2 list has been published, so the 25H2 status is carried over. Zen 2 is supported by mainline Linux kernels, so current Ubuntu, Fedora and Arch releases run normally.

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