deconstruct60
macrumors G5
There will be a time when TB6 (PCIe 5?) and perhaps an M6 or M7 Ultra chip in a Mac Studio will finally have parity with the insane amount of RAM and video cards that were usual with the Mac Pro.
Thunderbolt v6? Probably no time soon. Thunderbolt is driven by Intel. And Intel is not who there were 5-10 years ago. Intel is just trying to stop the market share losses at this point. They have multibillion dollar problems. TBv6 isn't going to solve any of those.
The underlying tech USB is run by USB-IF. Again... probably not going to make any improvement that drives up costs. Intel has lost the power to browbeat USB-IF forward. USB-IF is a large committee of which there is a substantive faction that don't want to chase high cost tech, just for higher cost sake.
Intel isn't putting TBv5 on several of their SoCs so that provisioned by default.
Thunderbolt is a x4 wide PCI-e lane. The Mac Pro historically had x16 wide PCI-e connections. x4 isn't going to caught up to x16 wide solutions with even a 2 generation difference ( 2 * x4 is x8 and still short of x16).
And the MP 2019's 1TB of memory had ECC. Apple has don't next to nothing there. An Ultra with 1TB with no protection is still going to loose folks who need accurate long running computations.