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).

Intel's chips are a bit faster at the top end but use far more energy. Certainly a problem for laptops, but I don't think most desktop users care. I guess Intels prices are a bit better if you want more than 8gb mem/256 ssg, but they're not that far apart.

You get a comparable performance at 15W with M2 to Intel at 55W.

Intel is not significantly faster, just more power hungry. That’s the mean difference in day to day usage.

One is a chip just announced/released by Apple. The other is a company floundering and stagnating in their product offerings.

Did you want to compare the M2 to a specific Intel CPU? The M2 is better.