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AMD Threadripper 9980X vs AMD Threadripper PRO 9945WX: Comparison
Threadripper 9980X vs Threadripper PRO 9945WX: the l3 cache difference
L3 cache is where these two genuinely part company, Threadripper 9980X 320 MB against Threadripper PRO 9945WX 76 MB, a 76% lead for Threadripper 9980X. Threadripper PRO 9945WX also leads on memory channels, 4 channels on the Threadripper 9980X versus 8 channels on the Threadripper PRO 9945WX. They differ on base clock too, 3.2 GHz on the Threadripper 9980X versus 4.2 GHz on the Threadripper PRO 9945WX.
Threadripper 9980X vs Threadripper PRO 9945WX: which one fits your build
Buy the Threadripper 9980X for 3D rendering and animation professionals and engineers running CAD/CAM software, though it is not the pick 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 built 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 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.
What Threadripper 9980X and Threadripper PRO 9945WX have in common
The common ground is wider than the gap: boost clock, tdp, release year, core architecture and socket are identical here. They match on 1 further specification as well.
Frequently asked questions
Do the Threadripper 9980X and Threadripper PRO 9945WX differ on thread count?
Yes. Thread Count reads 128 threads on the Threadripper 9980X versus 24 threads on the Threadripper PRO 9945WX.
Is the ECC Support the same on the Threadripper 9980X and Threadripper PRO 9945WX?
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 9945WX
- 2025
Core Count
- AMD Threadripper 9980X
- 64 cores
- AMD Threadripper PRO 9945WX
- 12 cores
Thread Count
- AMD Threadripper 9980X
- 128 threads
- AMD Threadripper PRO 9945WX
- 24 threads
Core Architecture
- AMD Threadripper 9980X
- Zen 5 "Shimada Peak"
- AMD Threadripper PRO 9945WX
- Zen 5 "Shimada Peak"
Base Clock
- AMD Threadripper 9980X
- 3.2 GHz
- AMD Threadripper PRO 9945WX
- 4.2 GHz
Boost Clock
- AMD Threadripper 9980X
- 5.4 GHz
- AMD Threadripper PRO 9945WX
- 5.4 GHz
L3 Cache
- AMD Threadripper 9980X
- 320 MBBest
- AMD Threadripper PRO 9945WX
- 76 MB-76%
Socket
- AMD Threadripper 9980X
- sTR5
- AMD Threadripper PRO 9945WX
- sTR5
Memory Channels
- AMD Threadripper 9980X
- 4 channels-50%
- AMD Threadripper PRO 9945WX
- 8 channelsBest
ECC Support
- AMD Threadripper 9980X
- Yes
- AMD Threadripper PRO 9945WX
- Yes
TDP
- AMD Threadripper 9980X
- 350 W
- AMD Threadripper PRO 9945WX
- 350 W
Memory Support
- AMD Threadripper 9980X
- Quad-channel ECC-capable DDR5
- AMD Threadripper PRO 9945WX
- 8-channel ECC DDR5Best
Which one should you pick?
Choose 9980X 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 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 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.