More interesting is comparing core size, I think. Just spitballing in MS Paint, if we chop off the FP the Zen 3 core plus 1MB L2 is probably ~ 3 sq mm. The M1 seems to be about 2 Firestorm complexes high and 4 wide, so a complex would be 15 sq mm, or ~ 3.75 sq mm for a core plus 3MB L2.

https://wccftech.com/amd-ryzen-5000-zen-3-vermeer-undressed-...