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AMD Ryzen Threadripper PRO 3955WX vs AMD Threadripper PRO 7975WX: Comparison
What is the difference between Ryzen Threadripper PRO 3955WX and Threadripper PRO 7975WX?
The gap that matters here is l3 cache: Ryzen Threadripper PRO 3955WX 64 MB against Threadripper PRO 7975WX 160 MB, which puts Threadripper PRO 7975WX 60% ahead. Tdp is not the same on both, 280 W on the Ryzen Threadripper PRO 3955WX versus 350 W on the Threadripper PRO 7975WX. They differ on release year too, 2020 on the Ryzen Threadripper PRO 3955WX versus 2023 on the Threadripper PRO 7975WX. Core count is not the same on both, 16 cores on the Ryzen Threadripper PRO 3955WX versus 32 cores on the Threadripper PRO 7975WX. They differ on thread count too, 32 threads on the Ryzen Threadripper PRO 3955WX versus 64 threads on the Threadripper PRO 7975WX. There is a split on base clock as well, 3.9 GHz on the Ryzen Threadripper PRO 3955WX versus 4.0 GHz on the Threadripper PRO 7975WX.
Which should you buy, Ryzen Threadripper PRO 3955WX or Threadripper PRO 7975WX?
Buy the Ryzen Threadripper PRO 3955WX for mainstream desktop builds and everyday productivity, though it is not the pick for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads. The Threadripper PRO 7975WX is the one to take for 3D rendering and animation professionals and engineers running CAD/CAM software, though it is the wrong buy 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.
Frequently asked questions
Do the Ryzen Threadripper PRO 3955WX and Threadripper PRO 7975WX differ on boost clock?
Yes. Boost Clock reads Up to 4.3 GHz on the Ryzen Threadripper PRO 3955WX versus 5.3 GHz on the Threadripper PRO 7975WX.
Is the Memory Channels the same on the Ryzen Threadripper PRO 3955WX and Threadripper PRO 7975WX?
It is. Both are listed at 8 channels, so it is not a reason to pick one over the other.
Specs and benchmarks
Release Year
- AMD Ryzen Threadripper PRO 3955WX
- 2020
- AMD Threadripper PRO 7975WX
- 2023
Core Count
- AMD Ryzen Threadripper PRO 3955WX
- 16 cores
- AMD Threadripper PRO 7975WX
- 32 cores
Thread Count
- AMD Ryzen Threadripper PRO 3955WX
- 32 threads
- AMD Threadripper PRO 7975WX
- 64 threads
Base Clock
- AMD Ryzen Threadripper PRO 3955WX
- 3.9 GHz
- AMD Threadripper PRO 7975WX
- 4.0 GHz
Boost Clock
- AMD Ryzen Threadripper PRO 3955WX
- Up to 4.3 GHz
- AMD Threadripper PRO 7975WX
- 5.3 GHz
L3 Cache
- AMD Ryzen Threadripper PRO 3955WX
- 64 MB-60%
- AMD Threadripper PRO 7975WX
- 160 MBBest
Socket
- AMD Ryzen Threadripper PRO 3955WX
- sWRX8
- AMD Threadripper PRO 7975WX
- sWRX8
Memory Channels
- AMD Ryzen Threadripper PRO 3955WX
- 8 channels
- AMD Threadripper PRO 7975WX
- 8 channels
TDP
- AMD Ryzen Threadripper PRO 3955WX
- 280 W
- AMD Threadripper PRO 7975WX
- 350 W
Memory Support
- AMD Ryzen Threadripper PRO 3955WX
- DDR4, 8-Channel, Up to 3200 MT/s
- AMD Threadripper PRO 7975WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 3955WX if you want the higher memory channels (8 channels vs 8 channels).
Choose 7975WX if you want the higher L3 cache (160 MB vs 64 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.