https://www.tomshardware.com/reviews/intel-core-i9-12900k-an...
It's very workload-dependent, so it's difficult to say how much power a chip will draw in general. It's clear that Intel is still a bit of an energy hog, though.
- 225 W is for the M1 Ultra Mac Studio, whole system power consumption - that includes powering the TB peripherals if they exist
- Intel numbers are just the CPU (not even including the chipset) and will only happen if you don't cool it enough and it has to throttle
So yes, I'd rather have a M1 (probably a Pro would be enough) on my desk than an i9 under it. But I am weird and like cool and quiet, not larger numbers.
MBP is too damn fast (holy shit the build times!!) and too damn quiet to go back. The M1 put the i5 in a headlock and had it begging for mercy without the slightest bit of effort.