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

Last updated · How Mars Score works
Ryzen 9 9900X3DAMDRENDER
Probe A
AMD
Ryzen 9 9900X3D
58.1/ 100C
Cores57· 40%
Benchmarks59· 40%
Platform—· 20%
Ryzen 9 9950XAMDRENDER
Probe B
AMD
Ryzen 9 9950X
61.1/ 100C
Cores57· 40%
Benchmarks65· 40%
Platform—· 20%
Quick verdict

Between the Ryzen 9 9900X3D and Ryzen 9 9950X, the Ryzen 9 9900X3D comes out ahead in l3 cache and tdp, while the Ryzen 9 9950X wins on cores and cinebench r23 (multi). Overall, the Ryzen 9 9900X3D scores 58.1 and the Ryzen 9 9950X scores 61.1 on our Mars Score.

Buying advice

Which should you buy?

The Ryzen 9 9950X edges ahead on the Mars Score (58.1 vs 61.1), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Ryzen 9 9900X3D if you care most about l3 cache and tdp. The biggest gaps in its favor are l3 cache, tdp.

Pick the Ryzen 9 9950X 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 cores, cinebench r23 (multi), boost clock.

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

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.

Why AMD - Ryzen 9 9900X3D wins

  • ▲L3 cache — 100.00% more. 128 MB vs 64 MB.
  • ▲TDP — 50.00 W less. 120 vs 170.

Why AMD - Ryzen 9 9950X wins

  • ▲Cores — 33.33% more. 16 vs 12.
  • ▲Cinebench R23 (multi) — 26.87% more. 42500 vs 33500.
  • ▲Boost clock — 3.64% more. 5.7 GHz vs 5.5 GHz.
Full readout

Spec comparison

Cores

SpecAMD - Ryzen 9 9900X3DAMD - Ryzen 9 9950X
Coresⓘ1216lead
Threadsⓘ2432lead
Base clockⓘ4.4 GHzlead4.3 GHz
Boost clockⓘ5.5 GHz5.7 GHzlead
L3 cacheⓘ128 MBlead64 MB

Platform

SpecAMD - Ryzen 9 9900X3DAMD - Ryzen 9 9950X
SocketⓘAM5AM5
TDPⓘ120 Wlead170 W
Integrated graphicsⓘtruetrue
DDR5ⓘtruetrue

Benchmarks

SpecAMD - Ryzen 9 9900X3DAMD - Ryzen 9 9950X
Cinebench R23 (multi)ⓘ3350042500lead
Cinebench R23 (single)ⓘ22402270lead
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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