Apple - M4 Ultra vs AMD - Ryzen 7 7800X3D

The M4 Ultra is the clear pick on raw spec strength, leading by 13.3 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 M4 Ultra if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are cores, cinebench r23 (multi).

Pick the Ryzen 7 7800X3D if you care most about l3 cache and boost clock. Its strongest claims are l3 cache, boost clock.

Both ship with comparable tdp, so those specs don't separate the two — focus on the differences below.

Bottom line: the M4 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.