Maybe - but it would allow for compute density that isn't currently possible on Mac Pro. IIRC there are 3d graphics studios that do movie VFX that use AMD Threadripper 64 core CPUs and having the ability to increase compute density in a single case with a good solution for distributed computing work would allow them to try and get this market back.
Which Mac Pro are you pertaining to? The 2019, that is well documented, understood and left unchanged for 4 years or the 2023?
I'd hold off judgement of the 2023 until benchmarks and lengthy reviews about it is published.
Odds are very likely that either M2 Ultra SKUs will outperform any of the 2019 SKUs.
Though very very unlikely there will be one esoteric benchmark that will show a less than best result.
But then again if almost all benchmarks outperform the 2019 model and even other workstations within the same price point and use case then who should complain?
I read of one MR user complaining that they cannot use their afterburner cards on the 2023. During Apple's livestream it was claimed M2 Ultra has built-in afterburners of many multitudes. So I do not understand why anyone's complaining about that.
How about GPU performance? Everyone's demanding Nvidia & AMD GPU support even when no 3rd party GPU benchmarks are published.
Scientific big data computing is another market that could benefit from the increased compute density. It wouldn't be a huge engineering lift since the M2 Ultra already exists, cluster computing is pretty well figured out already, just a matter of changing the shape of the M2 Ultra PCB that they put into the Mac Studio and figuring out how to do power delivery and if they want to do something like ethernet or PCIE for the cluster access.
Ultra niche of the ultra niche on the Mac.
Based on the more than 192GB memory requirements that some big data MR users have Apple would be better off not designing for them.
With Intel selling to them does not cost Apple extra. This was a + for Apple when they went with Intel as they enjoyed the economies of scale of the worldwide desktop workstation market.
Apple's leveraging the economies scale of iPhone chips when applied to Mac chips. IIRC worldwide shipments iPhone + iPad chips = PC chips.
If it were not for the iPhone Apple would still be stuck on 14nm Intel chips in 2024.