Night and day... and the Mac is actually faster for programming type stuff and the audio stuff I mess around with - on top of being a much more pleasant environment for both.
Even for gaming it's a lot more competent than you'd expect, especially for games that have been ported to Silicon. WoW runs at over 100fps (NB: 1440p, 165hz gaming monitor) with settings turned up pretty high. Factorio runs awesome, and just got a silicon port that bumped performance another 20% or so.
Obviously it's not so good at AAA games, but I have a PS5 for that, anyway. A lot more of my Steam library was avilable than I expected.. all the Paradox grand strategy stuff, lots of tycoon/city/base builders...
On a day to day level it's just so much more plesant... effectively silent (not recording studio silent, there's a very very slight noise, but it's well below the noise floor if the household HVAC is running, or you have any sound at all playing.
Even maxed out (like a chess engine using all cores) the fans barely come off idle and the machine temp peaks in the high 50s. At idle, it sites in the very low 30s, only 10c above ambient - and things that are on the edge of the SoC, like the RAM, are only 5c above ambient.
Then old i0 beast would idle in the 60s and go all the way into the 90s under load, with fans sounding like jet turbines.