MacRumors is reporting on the first geekbench reports of the 12th Generation Alder Lake Core i8-12900K 16 core chips, which score 18500 on geekbench vs 12500 for the M1 Pro and M1 Max, though at a much higher power draw.
So about 1.5 times as fast, which means a high Intel would whip the Apple Silicon on Multi-Core performance, though I doubt it’s built in GPU would be faster, though a discrete GPU certainly would.