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AMD Ryzen Threadripper PRO 3975WX vs AMD Ryzen Threadripper PRO 5955WX: Comparison
Ryzen Threadripper PRO 3975WX vs Ryzen Threadripper PRO 5955WX: the l3 cache difference
L3 cache is where these two genuinely part company, Ryzen Threadripper PRO 3975WX 128 MB against Ryzen Threadripper PRO 5955WX 64 MB, a 50% lead for Ryzen Threadripper PRO 3975WX. L2 cache runs the same way, 16 MB on the Ryzen Threadripper PRO 3975WX versus 8 MB on the Ryzen Threadripper PRO 5955WX, another win for Ryzen Threadripper PRO 3975WX. Thread count is not the same on both, 64 threads on the Ryzen Threadripper PRO 3975WX versus 32 threads on the Ryzen Threadripper PRO 5955WX. Base clock is not the same on both, 3.5 GHz on the Ryzen Threadripper PRO 3975WX versus 4 GHz on the Ryzen Threadripper PRO 5955WX. There is a split on memory support as well, DDR4-3200 ECC RDIMM on the Ryzen Threadripper PRO 3975WX versus DDR4, 8-Channel, Up to 3200 MT/s on the Ryzen Threadripper PRO 5955WX.
Who each one is for
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 Ryzen Threadripper PRO 5955WX is the one to take for mainstream desktop builds and everyday productivity, though it is not built for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads.
What Ryzen Threadripper PRO 3975WX and Ryzen Threadripper PRO 5955WX have in common
Where they agree, they agree completely, tdp, memory channels, socket, max memory speed and pcie generation included, so the decision does not turn on any of those.
Frequently asked questions
Do the Ryzen Threadripper PRO 3975WX and Ryzen Threadripper PRO 5955WX differ on boost clock?
Yes. Boost Clock reads 4.2 GHz on the Ryzen Threadripper PRO 3975WX versus Up to 4.5 GHz on the Ryzen Threadripper PRO 5955WX.
Specs and benchmarks
Release Year
- AMD Ryzen Threadripper PRO 3975WX
- 2020
- AMD Ryzen Threadripper PRO 5955WX
- 2022
Core Count
- AMD Ryzen Threadripper PRO 3975WX
- 32 cores
- AMD Ryzen Threadripper PRO 5955WX
- 16 cores
Thread Count
- AMD Ryzen Threadripper PRO 3975WX
- 64 threads
- AMD Ryzen Threadripper PRO 5955WX
- 32 threads
Base Clock
- AMD Ryzen Threadripper PRO 3975WX
- 3.5 GHz
- AMD Ryzen Threadripper PRO 5955WX
- 4 GHz
Boost Clock
- AMD Ryzen Threadripper PRO 3975WX
- 4.2 GHz
- AMD Ryzen Threadripper PRO 5955WX
- Up to 4.5 GHz
L2 Cache
- AMD Ryzen Threadripper PRO 3975WX
- 16 MBBest
- AMD Ryzen Threadripper PRO 5955WX
- 8 MB-50%
L3 Cache
- AMD Ryzen Threadripper PRO 3975WX
- 128 MBBest
- AMD Ryzen Threadripper PRO 5955WX
- 64 MB-50%
Socket
- AMD Ryzen Threadripper PRO 3975WX
- sWRX8
- AMD Ryzen Threadripper PRO 5955WX
- sWRX8
Memory Channels
- AMD Ryzen Threadripper PRO 3975WX
- 8 channels
- AMD Ryzen Threadripper PRO 5955WX
- 8 channels
Max Memory Speed
- AMD Ryzen Threadripper PRO 3975WX
- 3200 MT/s
- AMD Ryzen Threadripper PRO 5955WX
- 3200 MT/s
PCIe Generation
- AMD Ryzen Threadripper PRO 3975WX
- PCIe 4.0
- AMD Ryzen Threadripper PRO 5955WX
- PCIe 4.0
TDP
- AMD Ryzen Threadripper PRO 3975WX
- 280 W
- AMD Ryzen Threadripper PRO 5955WX
- 280 W
Memory Support
- AMD Ryzen Threadripper PRO 3975WX
- DDR4-3200 ECC RDIMM
- AMD Ryzen Threadripper PRO 5955WX
- DDR4, 8-Channel, Up to 3200 MT/s
Which one should you pick?
Choose 3975WX if you want the higher L2 cache (16 MB vs 8 MB), the higher L3 cache (128 MB vs 64 MB) and the higher memory channels (8 channels vs 8 channels).
Choose 5955WX if you already have it on hand or find it at a lower price.