Mac Studio or GPUs?

So for now I have been using a Epyc machine with a few 3090s to load mostly 70B or so models. Training I do on cloud. With deepseek around and the new Mac studio w/ 512GB I see the temptation to switch, but I don't have a good overview of the pros and cons, except a (very useful) reduction in size, wattage and noise.

Can somebody help me here? Should I just look at the fact that evaluation speed is around a a6000 (bit slower than 3090) but prompt eval speed is at least 3x slowe (m2 ultra, m3 probably better), and make my choice?