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AMD - Ryzen 9 9900X vs AMD - Ryzen 9 9950X3D

Last updated · How Mars Score works
Ryzen 9 9900XAMDRENDER
Probe A
AMD
Ryzen 9 9900X
56.6/ 100D
Cores55· 40%
Benchmarks58· 40%
Platform—· 20%
Ryzen 9 9950X3DAMDRENDER
Probe B
AMD
Ryzen 9 9950X3D
62.9/ 100C
Cores60· 40%
Benchmarks66· 40%
Platform—· 20%
Quick verdict

Between the Ryzen 9 9900X and Ryzen 9 9950X3D, the Ryzen 9 9900X comes out ahead in tdp, while the Ryzen 9 9950X3D wins on l3 cache and cinebench r23 (multi). Overall, the Ryzen 9 9900X scores 56.6 and the Ryzen 9 9950X3D scores 62.9 on our Mars Score.

Buying advice

Which should you buy?

The Ryzen 9 9950X3D edges ahead on the Mars Score (56.6 vs 62.9), but the 6.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Ryzen 9 9900X if you care most about tdp. The biggest gaps in its favor are tdp.

Pick the Ryzen 9 9950X3D if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are l3 cache, cinebench r23 (multi), cores, among others.

There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.

Bottom line: the Ryzen 9 9950X3D is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why AMD - Ryzen 9 9900X wins

  • ▲TDP — 50.00 W less. 120 vs 170.

Why AMD - Ryzen 9 9950X3D wins

  • ▲L3 cache — 100.00% more. 128 MB vs 64 MB.
  • ▲Cinebench R23 (multi) — 35.69% more. 44100 vs 32500.
  • ▲Cores — 33.33% more. 16 vs 12.
  • ▲Boost clock — 1.79% more. 5.7 GHz vs 5.6 GHz.
Full readout

Spec comparison

Cores

SpecAMD - Ryzen 9 9900XAMD - Ryzen 9 9950X3D
Coresⓘ1216lead
Threadsⓘ2432lead
Base clockⓘ4.4 GHzlead4.3 GHz
Boost clockⓘ5.6 GHz5.7 GHzlead
L3 cacheⓘ64 MB128 MBlead

Platform

SpecAMD - Ryzen 9 9900XAMD - Ryzen 9 9950X3D
SocketⓘAM5AM5
TDPⓘ120 Wlead170 W
Integrated graphicsⓘtruetrue
DDR5ⓘtruetrue

Benchmarks

SpecAMD - Ryzen 9 9900XAMD - Ryzen 9 9950X3D
Cinebench R23 (multi)ⓘ3250044100lead
Cinebench R23 (single)ⓘ22302280lead
Reader questions

Frequently asked

Drill down

Spec-level deep dives

Cores→Threads→Base clock→Boost clock→L3 cache→Socket→TDP→Integrated graphics→DDR5→Cinebench R23 (multi)→Cinebench R23 (single)→
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