@dwarf e.g. just comparing:
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Celeron+N5105+%40+2.00GHz&id=4412
vs.
https://www.cpubenchmark.net/cpu.php?cpu=Apple+M1+8+Core+3200+MHz&id=4104
I mean more than double the performance for 50% more power draw