It performs extremely well for tons of professional workflows. That’s why Apple made those comparisons. Sure A lot of PC people get 3080’s for games, but they also get them for tons of other things. Apple users, when they hear those comparisons, do not think “wow that’s going to be great for games!” They think about their creative workflows. So I’m not sure why all these PC folk keep getting caught up on “well apple compared to Nvidia so they obviously meant these were gonna be good for gaming” when that’s not what they said. Just because you associate Nvidia with games doesn’t mean that’s the point of those comparisons.
Macintosh is known for creative workflows, not gaming. This has been discussed ad nauseam on these forums. Games in general (with exceptions) are not developed for Mac, and even those that run native are likely not optimized as Mac is of course more of an afterthought.
If you are looking for a gaming rig, Mac is not your solution. Go buy a console or a PC. Of course it would be nice to game on a Mac, and there are some options out there, but right now it’s mostly a limitation on the developers part and optimizations for metal. I hope this changes and more devs take Mac seriously for games, but if they don’t, I’ll still be here happily using my Mac for my creative workflows. As that’s why I own a Mac and not a PC (tried it for 3 years and hated it). Games would just be an added bonus.