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AMD Threadripper 7980X vs AMD Threadripper PRO 9945WX: Comparison
Threadripper 7980X vs Threadripper PRO 9945WX l3 cache compared
Start with l3 cache, because it is the widest measured gap between them: Threadripper 7980X 320 MB against Threadripper PRO 9945WX 76 MB, 76% in favour of Threadripper 7980X. Add memory channels to that, 4 channels on the Threadripper 7980X versus 8 channels on the Threadripper PRO 9945WX, and the pattern holds. They differ on core architecture too, Zen 4 "Storm Peak" on the Threadripper 7980X versus Zen 5 "Shimada Peak" on the Threadripper PRO 9945WX. Base clock is not the same on both, 3.2 GHz on the Threadripper 7980X versus 4.2 GHz on the Threadripper PRO 9945WX.
Which should you buy, Threadripper 7980X or Threadripper PRO 9945WX?
Buy the Threadripper 7980X 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. The Threadripper PRO 9945WX suits users entering workstation platforms for the first time and Multi-GPU or multi-NVMe builds needing extra PCIe lanes, though it is not the pick for users who need maximum core count and gaming-only builds. Our rating of the Threadripper 7980X (9.1/10): the Threadripper 7980X 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 9945WX (8.6/10): the Threadripper PRO 9945WX 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.
Frequently asked questions
Do the Threadripper 7980X and Threadripper PRO 9945WX differ on boost clock?
Yes. Boost Clock reads 5.1 GHz on the Threadripper 7980X versus 5.4 GHz on the Threadripper PRO 9945WX.
Is the TDP the same on the Threadripper 7980X and Threadripper PRO 9945WX?
It is. Both are listed at 350 W, so it is not a reason to pick one over the other.
Specs and benchmarks
Release Year
- AMD Threadripper 7980X
- 2023
- AMD Threadripper PRO 9945WX
- 2025
Core Count
- AMD Threadripper 7980X
- 64 cores
- AMD Threadripper PRO 9945WX
- 12 cores
Thread Count
- AMD Threadripper 7980X
- 128 threads
- AMD Threadripper PRO 9945WX
- 24 threads
Core Architecture
- AMD Threadripper 7980X
- Zen 4 "Storm Peak"
- AMD Threadripper PRO 9945WX
- Zen 5 "Shimada Peak"
Base Clock
- AMD Threadripper 7980X
- 3.2 GHz
- AMD Threadripper PRO 9945WX
- 4.2 GHz
Boost Clock
- AMD Threadripper 7980X
- 5.1 GHz
- AMD Threadripper PRO 9945WX
- 5.4 GHz
L3 Cache
- AMD Threadripper 7980X
- 320 MBBest
- AMD Threadripper PRO 9945WX
- 76 MB-76%
Socket
- AMD Threadripper 7980X
- sTR5
- AMD Threadripper PRO 9945WX
- sTR5
Memory Channels
- AMD Threadripper 7980X
- 4 channels-50%
- AMD Threadripper PRO 9945WX
- 8 channelsBest
ECC Support
- AMD Threadripper 7980X
- Yes
- AMD Threadripper PRO 9945WX
- Yes
TDP
- AMD Threadripper 7980X
- 350 W
- AMD Threadripper PRO 9945WX
- 350 W
Memory Support
- AMD Threadripper 7980X
- Quad-channel ECC-capable DDR5
- AMD Threadripper PRO 9945WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 7980X if you want the higher L3 cache (320 MB vs 76 MB).
Choose 9945WX if you want the higher memory channels (8 channels vs 4 channels).
Verdict
AMD Threadripper 7980X
9.1 / 10 Expert Rating
The Threadripper 7980X 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 9945WX
8.6 / 10 Expert Rating
The Threadripper PRO 9945WX 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.