Mac Pro M2 review - Maybe a true modular Mac will come in a few more years

blastdoor said:
Apple has repeatedly made a really big deal out of the benefits of integrating the GPU and CPU. While I could imagine a PCI card that acted as an accelerator of sorts, and a GPU could technically play such a role, it would have been surprising to see the Mac Pro support add-on GPUs aa that term is commonly understood. 
As I’ve noted before, the path to having a “modular” Mac Pro — in the sense of cobbling together multiple cpus and GPUs — is to buy as many Mac minis as you want and network them. 
It might be cool if apple took that to a higher level and made it possible to network multiple minis using something faster that 10 Gb Ethernet. But I think that’s the most one could reasonably hope for in terms of a future modular “Mac Pro”

Xgrid was cool and the concept remains so, but that's not quite the same and requires massively parallel jobs to get the fullest extent. Even theoretically including Thunderbolt for networking, that will still only allow 40 gigabit connections in between, and more realistically, 10gig ethernet is today's solutions. The folks I worked with for this review have all experimented with clustering, but the calculations don't lead themselves perfectly to it. 

It's a good idea, don't get me wrong. It's just not for everything that a "modular" Mac Pro could do, or has done.