Watt-for-watt, dollar-for-dollar, M1 steamrolls Intel. Intel does claim to currently have the most powerful consumer chip on the planet, if you watts and performance (effectively cooling the thing is a bit of a meme).

Note that Apple do not mention AMD. M1 and M2 probably still kick AMD to the dirt on the power efficiency front, but the cost for performance end would be difficult to quantify (and the AMD performance ceiling is also significantly higher).