You mean "totally irrelevant from a thermal standpoint". The trashcan was built around 3 vertical circuit boards (
not including the power supply and I/O daughterboard) - each with a massive heat source in the centre. Completely wrong for Apple Silicon's single-SoC design with one primary heat source and a logic board smaller than any one of the Trashcan's three boards.
Meanwhile, the Studio sits happily in the wasted space under a display screen, with the front ports accessible, and can be stacked with hubs/storage etc.
Not saying that the Studio couldn't be improved on, but the trashcan isn't the way to go.
There were two "courageous" design decisions with the Trashcan:
- No internal expansion (beyond RAM & that was still limited c.f. tower workstations) - Even the SSD daughterboard was proprietary and not officially upgradeable. Everything relied on Thunderbolt 2. Just ahead of its time? Maybe.
- The thermal design locked it into an inflexible 1xCPU + dual medium-power dGPU architecture which never caught on and for which viable upgrades never appeared. Just ahead of its time? - Nope, it was just a straight bad call that took Apple 4 years to admit and 6 years to fix. The cylinder/triangular thermal core idea isn't coming back.
(1) ...may even have worked if Apple hadn't let the original Mac Pro die on the vine & launched the trashcan as an
alternative. By the time the Trashcan launched, the classic Mac Pro was thoroughly outdated and had been discontinued for a year in the EU because Apple couldn't contrive to add a simple fan guard). That was dumb at the time, when Macs were basically PC clones blessed to run MacOS & rolling out an updated Xeon tower alongside it would hardly have been the Manhattan project. Mind you, one and done has been standard operating practice for Mac/iMac Pro for a while...
The Mac Studio came out when:
(a) Apple were in full control of the CPU/GPU design & future roadmap
(b) Thunderbolt and USB 3.x were faster and better supported
(c) The 2019 Mac Pro was still available for a year or so, then the 2023 MP offered a stopgap for users with legacy PCIe I/O cards (that's all it was). So the Studio has had 4 years to establish itself beside a still-current tower Mac Pro.