Can you upgrade the GPU?
I'm curious if you can upgrade the GPUs later on. I haven't been able to find any answers, but a lot of people asking.
Too new to know the answer - but it would likely be possible (for certain values of possible). MacPro's have long been the "Professional" Mac desktop and as such much more upgradeable than any iMac.
That being said you've never been able to stick just any CPU into a Mac Pro. It would have to be a CPU that was supported as a custom build option by Apple otherwise you'll run into EFI/extension (aka "driver") problems.
If this answer is acceptable please remember to return and mark it.
Leo Leporte bought a 2013 MacPro and showed it on his TV show called Twit. (See YouTube) He stated it can be upgraded in his show. Along with the CPU Which other's have done already.
Yes, I upgraded to 12 core. Followed instructions on ifixit