The Mac Pro’s CPU, like the rest of Apple’s processors, will have unified reminiscence built into the system-on-chip and hence will not be upgradeable like the current model.
The Apple silicon Mac Pro may have the same design as the Intel model.
Additionally, it supposedly no longer has an upgradeable GPU. According to Gurman, storage is “the principal user-upgradeable component in the new Mac Pro,” and the key difference between the M2 Ultra in the Mac Pro and the M1 Ultra in the Mac Studio is “performance from additional cooling.”
