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AMD Ryzen Threadripper PRO 3975WX vs AMD Threadripper PRO 7985WX: Comparison
Ryzen Threadripper PRO 3975WX vs Threadripper PRO 7985WX: the l3 cache difference
L3 cache is where these two genuinely part company, Ryzen Threadripper PRO 3975WX 128 MB against Threadripper PRO 7985WX 320 MB, a 60% lead for Threadripper PRO 7985WX. There is a split on tdp as well, 280 W on the Ryzen Threadripper PRO 3975WX versus 350 W on the Threadripper PRO 7985WX. They differ on release year too, 2020 on the Ryzen Threadripper PRO 3975WX versus 2023 on the Threadripper PRO 7985WX. They differ on core count too, 32 cores on the Ryzen Threadripper PRO 3975WX versus 64 cores on the Threadripper PRO 7985WX. Thread count is not the same on both, 64 threads on the Ryzen Threadripper PRO 3975WX versus 128 threads on the Threadripper PRO 7985WX. Base clock is not the same on both, 3.5 GHz on the Ryzen Threadripper PRO 3975WX versus 3.2 GHz on the Threadripper PRO 7985WX.
Ryzen Threadripper PRO 3975WX vs Threadripper PRO 7985WX: 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 7985WX is the one to take for 3D rendering and animation professionals and engineers running CAD/CAM software, though it is not built for budget builds and pure gaming rigs. Our rating of the Threadripper PRO 7985WX (9.1/10): the Threadripper PRO 7985WX 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 3975WX and Threadripper PRO 7985WX differ on boost clock?
Yes. Boost Clock reads 4.2 GHz on the Ryzen Threadripper PRO 3975WX versus 5.1 GHz on the Threadripper PRO 7985WX.
Is the Memory Channels the same on the Ryzen Threadripper PRO 3975WX and Threadripper PRO 7985WX?
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 3975WX
- 2020
- AMD Threadripper PRO 7985WX
- 2023
Core Count
- AMD Ryzen Threadripper PRO 3975WX
- 32 cores
- AMD Threadripper PRO 7985WX
- 64 cores
Thread Count
- AMD Ryzen Threadripper PRO 3975WX
- 64 threads
- AMD Threadripper PRO 7985WX
- 128 threads
Base Clock
- AMD Ryzen Threadripper PRO 3975WX
- 3.5 GHz
- AMD Threadripper PRO 7985WX
- 3.2 GHz
Boost Clock
- AMD Ryzen Threadripper PRO 3975WX
- 4.2 GHz
- AMD Threadripper PRO 7985WX
- 5.1 GHz
L3 Cache
- AMD Ryzen Threadripper PRO 3975WX
- 128 MB-60%
- AMD Threadripper PRO 7985WX
- 320 MBBest
Socket
- AMD Ryzen Threadripper PRO 3975WX
- sWRX8
- AMD Threadripper PRO 7985WX
- sWRX8
Memory Channels
- AMD Ryzen Threadripper PRO 3975WX
- 8 channels
- AMD Threadripper PRO 7985WX
- 8 channels
ECC Support
- AMD Ryzen Threadripper PRO 3975WX
- Yes
- AMD Threadripper PRO 7985WX
- Yes
TDP
- AMD Ryzen Threadripper PRO 3975WX
- 280 W
- AMD Threadripper PRO 7985WX
- 350 W
Memory Support
- AMD Ryzen Threadripper PRO 3975WX
- DDR4-3200 ECC RDIMM
- AMD Threadripper PRO 7985WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 3975WX if you want the higher memory channels (8 channels vs 8 channels).
Choose 7985WX if you want the higher L3 cache (320 MB vs 128 MB).
Verdict
AMD Threadripper PRO 7985WX
9.1 / 10 Expert Rating
The Threadripper PRO 7985WX delivers workstation-grade multi-threaded performance with strong single-core boost, making it a serious option for professionals who outgrew mainstream desktop platforms.