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AMD Ryzen Threadripper PRO 3975WX 32-core workstation processor (Zen 2, sWRX8)
AMD

AMD Ryzen Threadripper PRO 3975WX

View on amd.com
Boost/Base Clock:
4.2 GHz / 3.5 GHz
Core/Thread Count:
32 Core / 64 Thread
Cache:
128MB L3 + 16MB L2 + 2MB L1
TDP:
280 Watts
CPU Process Node:
7 Nanometers (TSMC)
CPU Socket:
sWRX8
CPU Series:
Zen 2, Ryzen Threadripper PRO
Memory Support:
DDR4-3200 ECC RDIMM
Form Factor:
Server & Enthusiast

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Manufacturer: AMD Last updated: September 9, 2026

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AMD Ryzen Threadripper PRO 3975WX Review

The AMD Ryzen Threadripper PRO 3975WX is a 32-core, 64-thread workstation processor built on Zen 2, running a 3.5 GHz base clock that boosts to 4.2 GHz within a 280 Watt TDP on the specialized sWRX8 platform.

Sitting below the 64-core PRO 3995WX in AMD's Threadripper PRO stack, this chip offers a genuine entry point into workstation-class single-socket computing for professionals who don't need the very highest core count available.

Platform

This flagship-tier workstation chip requires the specialized sWRX8 platform, typically paired with 8-channel DDR4 memory for genuinely massive workstation-scale bandwidth well beyond mainstream desktop or standard HEDT platforms.

How Is the Threadripper PRO 3975WX in Terms of Performance

With 32 cores and 64 threads on a single-socket workstation platform, this chip delivers genuinely massive parallel throughput for demanding professional workloads: large-scale rendering, simulation, and scientific computing.

Benchmarks

Cinebench R20 multi-core scores of 17,744 and single-core scores of 511 confirm genuinely massive workstation-tier throughput, sitting proportionally below the 64-core PRO 3995WX given the core count difference.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

  • Professional workstation workloads needing genuine 32-core, 64-thread single-socket throughput without the top-tier 64-core price

Not for

  • Anyone outside professional workstation use, this is specialized, expensive hardware far beyond consumer needs

Specifications

What these specs mean

Identity

BrandAMD
Model Number3975WX
Product FamilyRyzen Threadripper PRO
Release Year2020
SegmentWorkstation

Cores and threads

Core Count32 cores
Thread Count64 threads
SMT SupportYes

Clocks

Base Clock3.5 GHz
Boost Clock4.2 GHz

Cache

L2 Cache16 MB
L3 Cache128 MB
3D V-CacheNo

Platform

SocketsWRX8
Multi-Socket SupportSingle Socket Only

Memory

Memory Channels8 channels
Memory TypeDDR4 RDIMM
Max Memory Speed3200 MT/s
Max Memory Capacity2 TB
ECC SupportYes

PCIe and IO

PCIe Lanes128 lanes
PCIe GenerationPCIe 4.0
CXL SupportNone

Power and thermals

TDP280 W

Accelerators and security

Integrated GraphicsNo
AVX-512 SupportNo
AMX SupportNo

Manufacturing

Process Node7 nm
Chiplet DesignYes
CPU SocketsWRX8

Measured results

SPEC CPU 2017

Best published result on spec.org as of 23 Sept 2026.

1-chip system
SPECrate® 2017 Integer (base)255

Cores 32 · Tested in Tyrone Camarero SSA300TA-54TL (3.50 GHz, AMD Ryzen Threadripper PRO 3975WX) · Published by Tyrone Systems, Dec-2021

Full disclosure on spec.org
SPECrate® 2017 Floating Point (base)209

Cores 32 · Tested in A+ SuperWorkstation 5014A-TT (M12SWA-TF , AMD Ryzen Threadripper PRO 3975WX) · Published by Supermicro, Apr-2021

Full disclosure on spec.org

SPEC®, SPECrate® and SPECspeed® are registered trademarks of the Standard Performance Evaluation Corporation. Copied by permission of the Standard Performance Evaluation Corporation (SPEC). Results retrieved from www.spec.org on 23 Sept 2026.

FAQs

What are the key specifications of the AMD Ryzen Threadripper PRO 3975WX?

The AMD Ryzen Threadripper PRO 3975WX has a 3.5 GHz base and 4.2 GHz boost clock, 128 MB of L3 cache and a 280 W TDP. It has no integrated graphics, so it needs a graphics card. Socket: sWRX8.

Will the AMD Ryzen Threadripper PRO 3975WX work with my current setup?

The AMD Ryzen Threadripper PRO 3975WX lists CPU Socket is sWRX8. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the AMD Ryzen Threadripper PRO 3975WX best suited to?

Best suited to: Professional workstation workloads needing genuine 32-core, 64-thread single-socket throughput without the top-tier 64-core price.

What are the drawbacks of the AMD Ryzen Threadripper PRO 3975WX?

Not the best fit for: Anyone outside professional workstation use, this is specialized, expensive hardware far beyond consumer needs.

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