Even a single node difference can easily come close to a 25% increase in performance: "N5 technology provides about 20% faster speed than N7 technology or about 40% power reduction." [1]

Real world performance pretty much always lines up with these estimates. It's the main reason why we have exponential growth in computing power in the first place.

It would be a more fair comparison to compare the M1 to AMD's ZEN 4, which should be coming out next quarter.

[1] https://www.tsmc.com/english/dedicatedFoundry/technology/log...