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AMD Ryzen Threadripper PRO 3975WX vs AMD Threadripper PRO 7975WX: Comparison
What is the difference between Ryzen Threadripper PRO 3975WX and Threadripper PRO 7975WX?
On l3 cache the spread is 20%, Ryzen Threadripper PRO 3975WX 128 MB against Threadripper PRO 7975WX 160 MB, so Threadripper PRO 7975WX takes it. Boost clock is not the same on both, 4.2 GHz on the Ryzen Threadripper PRO 3975WX versus 5.3 GHz on the Threadripper PRO 7975WX. Tdp is not the same on both, 280 W on the Ryzen Threadripper PRO 3975WX versus 350 W on the Threadripper PRO 7975WX. They differ on release year too, 2020 on the Ryzen Threadripper PRO 3975WX versus 2023 on the Threadripper PRO 7975WX. Base clock is not the same on both, 3.5 GHz on the Ryzen Threadripper PRO 3975WX versus 4.0 GHz on the Threadripper PRO 7975WX. On memory support there is little in it, DDR4-3200 ECC RDIMM on the Ryzen Threadripper PRO 3975WX versus 8-channel ECC DDR5 on the Threadripper PRO 7975WX.
Ryzen Threadripper PRO 3975WX vs Threadripper PRO 7975WX: which one fits your build
Take the Ryzen Threadripper PRO 3975WX for professional workstation workloads needing genuine 32-core, 64-thread single-socket throughput without the top-tier 64-core price. It is the wrong buy for anyone outside professional workstation use, this is specialized, expensive hardware far beyond consumer needs. The Threadripper PRO 7975WX suits 3D rendering and animation professionals and engineers running CAD/CAM software, though it is not the pick for budget builds and pure gaming rigs. Our rating of the Threadripper PRO 7975WX (9.1/10): the Threadripper PRO 7975WX delivers workstation-grade multi-threaded performance with strong single-core boost, making it a serious option for professionals who outgrew mainstream desktop platforms.
Where the two are identical
The common ground is wider than the gap: memory channels, core count, thread count, socket and ecc support are identical here.
Specs and benchmarks
Release Year
- AMD Ryzen Threadripper PRO 3975WX
- 2020
- AMD Threadripper PRO 7975WX
- 2023
Core Count
- AMD Ryzen Threadripper PRO 3975WX
- 32 cores
- AMD Threadripper PRO 7975WX
- 32 cores
Thread Count
- AMD Ryzen Threadripper PRO 3975WX
- 64 threads
- AMD Threadripper PRO 7975WX
- 64 threads
Base Clock
- AMD Ryzen Threadripper PRO 3975WX
- 3.5 GHz
- AMD Threadripper PRO 7975WX
- 4.0 GHz
Boost Clock
- AMD Ryzen Threadripper PRO 3975WX
- 4.2 GHz
- AMD Threadripper PRO 7975WX
- 5.3 GHz
L3 Cache
- AMD Ryzen Threadripper PRO 3975WX
- 128 MB-20%
- AMD Threadripper PRO 7975WX
- 160 MBBest
Socket
- AMD Ryzen Threadripper PRO 3975WX
- sWRX8
- AMD Threadripper PRO 7975WX
- sWRX8
Memory Channels
- AMD Ryzen Threadripper PRO 3975WX
- 8 channels
- AMD Threadripper PRO 7975WX
- 8 channels
ECC Support
- AMD Ryzen Threadripper PRO 3975WX
- Yes
- AMD Threadripper PRO 7975WX
- Yes
TDP
- AMD Ryzen Threadripper PRO 3975WX
- 280 W
- AMD Threadripper PRO 7975WX
- 350 W
Memory Support
- AMD Ryzen Threadripper PRO 3975WX
- DDR4-3200 ECC RDIMM
- AMD Threadripper PRO 7975WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 3975WX if you want the higher memory channels (8 channels vs 8 channels).
Choose 7975WX if you want the higher L3 cache (160 MB vs 128 MB).
Verdict
AMD Threadripper PRO 7975WX
9.1 / 10 Expert Rating
The Threadripper PRO 7975WX delivers workstation-grade multi-threaded performance with strong single-core boost, making it a serious option for professionals who outgrew mainstream desktop platforms.