I didn't watch the video, but some questions/points:
1) The M2 Ultras on the Studio and MP obviously have the same number of PCIe lanes. While the M2 Ultra doesn't have enough lanes to support the max possible bandwidth from the MP's internal SSD plus all the PCIe cards you can plug into it (not even close), I recall reading that the Ultra does have more than enough lanes to support the internal SSD plus the max bandwidth of all the external ports on the Studio. If that's correct (I don't know if it is), that would mean the MP offers more external bandwidth than the Studio (the idea being that, unlike the Studio, the MP can make use of all the M2 Ultra's PCIe bandwidth). It would be nice to get some numbers on this.
2) A music producer, Neil Parfitt, made the interesting point that the audio cards he uses have very noisy fans. Thus his MP needs to be in a separate room regardless, making the inherent quietness of the new MP irrelevant for his use case.
3) One way Apple could, in a very obvious way, distinguish the MP from the Studio, is to make the MP generationally upgradeable. E.g., allow the M2 Ultra MP to be upgraded to, say, an M4 Ultra or M4 Extreme MP. Then you don't have to junk the expensive case when you upgrade, making the additional $ you spent for the case be much more justifiable. Take a look at this pic from iFixit's teardown of the 2019 MP (https://www.ifixit.com/Teardown/Mac+Pro+2019+Teardown/128922). Granted, the AS version is somewhat different but, based on this, it doesn't seem like you''d need to replace much more than the motherboard to upgrade from an older AS version to a new one (assuming they stay with the same case design).
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