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AMD Ryzen Threadripper PRO 3955WX vs AMD Ryzen Threadripper PRO 5945WX: Comparison
What is the difference between Ryzen Threadripper PRO 3955WX and Ryzen Threadripper PRO 5945WX?
The first real difference is boost clock: Ryzen Threadripper PRO 3955WX Up to 4.3 GHz against Ryzen Threadripper PRO 5945WX Up to 4.5 GHz. L2 cache runs the same way, 8 MB on the Ryzen Threadripper PRO 3955WX versus 6 MB on the Ryzen Threadripper PRO 5945WX, another win for Ryzen Threadripper PRO 3955WX. Release year is not the same on both, 2020 on the Ryzen Threadripper PRO 3955WX versus 2022 on the Ryzen Threadripper PRO 5945WX. They differ on core count too, 16 cores on the Ryzen Threadripper PRO 3955WX versus 12 cores on the Ryzen Threadripper PRO 5945WX. They differ on thread count too, 32 threads on the Ryzen Threadripper PRO 3955WX versus 24 threads on the Ryzen Threadripper PRO 5945WX. There is a split on base clock as well, 3.9 GHz on the Ryzen Threadripper PRO 3955WX versus 4.1 GHz on the Ryzen Threadripper PRO 5945WX. There is a split on unlocked for overclocking as well, No on the Ryzen Threadripper PRO 3955WX versus Yes on the Ryzen Threadripper PRO 5945WX.
Which should you buy, Ryzen Threadripper PRO 3955WX or Ryzen Threadripper PRO 5945WX?
The Ryzen Threadripper PRO 3955WX is the one to take 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 Ryzen Threadripper PRO 5945WX suits mainstream desktop builds and everyday productivity, though it is the wrong buy for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads.
Where the two are identical
Everything else lines up. Tdp, l3 cache, memory channels, igpu and socket read the same on both, so those are not worth weighing. They match on 4 further specifications as well.
Frequently asked questions
Is the Max Memory Speed the same on the Ryzen Threadripper PRO 3955WX and Ryzen Threadripper PRO 5945WX?
It is. Both are listed at 3200 MT/s, so it is not a reason to pick one over the other.
Specs and benchmarks
Release Year
- AMD Ryzen Threadripper PRO 3955WX
- 2020
- AMD Ryzen Threadripper PRO 5945WX
- 2022
Core Count
- AMD Ryzen Threadripper PRO 3955WX
- 16 cores
- AMD Ryzen Threadripper PRO 5945WX
- 12 cores
iGPU
- AMD Ryzen Threadripper PRO 3955WX
- Discrete Graphics Card Required
- AMD Ryzen Threadripper PRO 5945WX
- Discrete Graphics Card Required
Thread Count
- AMD Ryzen Threadripper PRO 3955WX
- 32 threads
- AMD Ryzen Threadripper PRO 5945WX
- 24 threads
Base Clock
- AMD Ryzen Threadripper PRO 3955WX
- 3.9 GHz
- AMD Ryzen Threadripper PRO 5945WX
- 4.1 GHz
Boost Clock
- AMD Ryzen Threadripper PRO 3955WX
- Up to 4.3 GHz
- AMD Ryzen Threadripper PRO 5945WX
- Up to 4.5 GHz
L2 Cache
- AMD Ryzen Threadripper PRO 3955WX
- 8 MBBest
- AMD Ryzen Threadripper PRO 5945WX
- 6 MB-25%
L3 Cache
- AMD Ryzen Threadripper PRO 3955WX
- 64 MB
- AMD Ryzen Threadripper PRO 5945WX
- 64 MB
Socket
- AMD Ryzen Threadripper PRO 3955WX
- sWRX8
- AMD Ryzen Threadripper PRO 5945WX
- sWRX8
Memory Channels
- AMD Ryzen Threadripper PRO 3955WX
- 8 channels
- AMD Ryzen Threadripper PRO 5945WX
- 8 channels
Max Memory Speed
- AMD Ryzen Threadripper PRO 3955WX
- 3200 MT/s
- AMD Ryzen Threadripper PRO 5945WX
- 3200 MT/s
PCIe Generation
- AMD Ryzen Threadripper PRO 3955WX
- PCIe 4.0
- AMD Ryzen Threadripper PRO 5945WX
- PCIe 4.0
TDP
- AMD Ryzen Threadripper PRO 3955WX
- 280 W
- AMD Ryzen Threadripper PRO 5945WX
- 280 W
PCIe
- AMD Ryzen Threadripper PRO 3955WX
- PCIe 4.0
- AMD Ryzen Threadripper PRO 5945WX
- PCIe 4.0
Memory Support
- AMD Ryzen Threadripper PRO 3955WX
- DDR4, 8-Channel, Up to 3200 MT/s
- AMD Ryzen Threadripper PRO 5945WX
- DDR4, 8-Channel, Up to 3200 MT/s
Codename
- AMD Ryzen Threadripper PRO 3955WX
- Castle Peak
- AMD Ryzen Threadripper PRO 5945WX
- Chagall PRO
Launch Date
- AMD Ryzen Threadripper PRO 3955WX
- 7/14/2020
- AMD Ryzen Threadripper PRO 5945WX
- 03/08/2022
Unlocked for Overclocking
- AMD Ryzen Threadripper PRO 3955WX
- No
- AMD Ryzen Threadripper PRO 5945WX
- Yes
Which one should you pick?
Choose 3955WX if you want the higher L2 cache (8 MB vs 6 MB), the higher L3 cache (64 MB vs 64 MB) and the higher memory channels (8 channels vs 8 channels).
Choose 5945WX if you already have it on hand or find it at a lower price.