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Head-to-head

Apple - M3 vs AMD - Ryzen 9 9900X

Last updated · How Mars Score works
M3APPLERENDER
Probe A
Apple
M3
43.6/ 100D
Cores43· 40%
Benchmarks44· 40%
Platform—· 20%
Ryzen 9 9900XAMDRENDER
Probe B
AMD
Ryzen 9 9900X
56.6/ 100D
Cores55· 40%
Benchmarks58· 40%
Platform—· 20%
Quick verdict

Between the M3 and Ryzen 9 9900X, the M3 comes out ahead in tdp, while the Ryzen 9 9900X wins on l3 cache and cinebench r23 (multi). Overall, the M3 scores 43.6 and the Ryzen 9 9900X scores 56.6 on our Mars Score.

Buying advice

Which should you buy?

The Ryzen 9 9900X is the clear pick on raw spec strength, leading by 13.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the M3 if you care most about tdp. The biggest gaps in its favor are tdp.

Pick the Ryzen 9 9900X 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 9900X is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Apple - M3 wins

  • ▲TDP — 98.00 W less. 22 vs 120.

Why AMD - Ryzen 9 9900X wins

  • ▲L3 cache — 300.00% more. 64 MB vs 16 MB.
  • ▲Cinebench R23 (multi) — 125.69% more. 32500 vs 14400.
  • ▲Cores — 50.00% more. 12 vs 8.
  • ▲Boost clock — 38.27% more. 5.6 GHz vs 4.05 GHz.
Full readout

Spec comparison

Cores

SpecApple - M3AMD - Ryzen 9 9900X
Coresⓘ812lead
Threadsⓘ824lead
Base clockⓘ0 GHz4.4 GHzlead
Boost clockⓘ4.05 GHz5.6 GHzlead
L3 cacheⓘ16 MB64 MBlead

Platform

SpecApple - M3AMD - Ryzen 9 9900X
SocketⓘSolderedAM5
TDPⓘ22 Wlead120 W
Integrated graphicsⓘtruetrue
DDR5ⓘtruetrue

Benchmarks

SpecApple - M3AMD - Ryzen 9 9900X
Cinebench R23 (multi)ⓘ1440032500lead
Cinebench R23 (single)ⓘ19502230lead
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)→
By manufacturer

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