Comparing the M1 Max to a Ryzen 7 8845HS is not a fair comparison because the M1 chip also includes a _massive_ GPU tile, unlike the 8845HS which has a comparatively tiny iGPU because most vendors taking that part are pairing them with a separate dGPU package.

A better comparison is to take the total package area of the AI Max+ 395 that includes a 16 core CPU + a massive GPU tile and you get ~448mm^2 across all 3 chiplets.