The Mac Studio (at least the M3 Ultra model) blows the Framework out of the water when it comes to AI performance, though, at least according to this (Dutch language) benchmark: https://tweakers.net/reviews/13614/framework-desktop-de-fram...

Paying twice the price for twice to seven times the performance may not be such a bad thing. Then again, with Apple you're kind of stuck with macOS and the like, so Framework may still be the better option depending on your use case.

One detail is that the memory bandwidth on the M4 Max and M3 Ultra (especially) is considerably higher than the 395+.