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AMD Threadripper 9980X vs AMD Threadripper PRO 9955WX: Comparison
Threadripper 9980X vs Threadripper PRO 9955WX l3 cache compared
The gap that matters here is l3 cache: Threadripper 9980X 320 MB against Threadripper PRO 9955WX 80 MB, which puts Threadripper 9980X 75% ahead. Add memory channels to that, 4 channels on the Threadripper 9980X versus 8 channels on the Threadripper PRO 9955WX, and the pattern holds. There is a split on base clock as well, 3.2 GHz on the Threadripper 9980X versus 4.1 GHz on the Threadripper PRO 9955WX.
Who each one is for
The Threadripper 9980X 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. Buy the Threadripper PRO 9955WX for users entering workstation platforms for the first time and Multi-GPU or multi-NVMe builds needing extra PCIe lanes, though it is the wrong buy for users who need maximum core count and gaming-only builds. Our rating of the Threadripper 9980X (9.1/10): the Threadripper 9980X delivers workstation-grade multi-threaded performance with strong single-core boost, making it a serious option for professionals who outgrew mainstream desktop platforms. Our rating of the Threadripper PRO 9955WX (8.6/10): the Threadripper PRO 9955WX is the most accessible way into the Threadripper PRO platform, trading some core count for a lower price while keeping the ECC memory support and PCIe lane advantage that define the lineup.
Where the two are identical
Where they agree, they agree completely, boost clock, tdp, release year, core architecture and socket included, so the decision does not turn on any of those. They match on 1 further specification as well.
Frequently asked questions
Do the Threadripper 9980X and Threadripper PRO 9955WX differ on thread count?
Yes. Thread Count reads 128 threads on the Threadripper 9980X versus 32 threads on the Threadripper PRO 9955WX.
Is the ECC Support the same on the Threadripper 9980X and Threadripper PRO 9955WX?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Release Year
- AMD Threadripper 9980X
- 2025
- AMD Threadripper PRO 9955WX
- 2025
Core Count
- AMD Threadripper 9980X
- 64 cores
- AMD Threadripper PRO 9955WX
- 16 cores
Thread Count
- AMD Threadripper 9980X
- 128 threads
- AMD Threadripper PRO 9955WX
- 32 threads
Core Architecture
- AMD Threadripper 9980X
- Zen 5 "Shimada Peak"
- AMD Threadripper PRO 9955WX
- Zen 5 "Shimada Peak"
Base Clock
- AMD Threadripper 9980X
- 3.2 GHz
- AMD Threadripper PRO 9955WX
- 4.1 GHz
Boost Clock
- AMD Threadripper 9980X
- 5.4 GHz
- AMD Threadripper PRO 9955WX
- 5.4 GHz
L3 Cache
- AMD Threadripper 9980X
- 320 MBBest
- AMD Threadripper PRO 9955WX
- 80 MB-75%
Socket
- AMD Threadripper 9980X
- sTR5
- AMD Threadripper PRO 9955WX
- sTR5
Memory Channels
- AMD Threadripper 9980X
- 4 channels-50%
- AMD Threadripper PRO 9955WX
- 8 channelsBest
ECC Support
- AMD Threadripper 9980X
- Yes
- AMD Threadripper PRO 9955WX
- Yes
TDP
- AMD Threadripper 9980X
- 350 W
- AMD Threadripper PRO 9955WX
- 350 W
Memory Support
- AMD Threadripper 9980X
- Quad-channel ECC-capable DDR5
- AMD Threadripper PRO 9955WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 9980X if you want the higher L3 cache (320 MB vs 80 MB).
Choose 9955WX if you want the higher memory channels (8 channels vs 4 channels).
Verdict
AMD Threadripper 9980X
9.1 / 10 Expert Rating
The Threadripper 9980X delivers workstation-grade multi-threaded performance with strong single-core boost, making it a serious option for professionals who outgrew mainstream desktop platforms.
AMD Threadripper PRO 9955WX
8.6 / 10 Expert Rating
The Threadripper PRO 9955WX is the most accessible way into the Threadripper PRO platform, trading some core count for a lower price while keeping the ECC memory support and PCIe lane advantage that define the lineup.