Based on the twitter thread this bottleneck only seems to apply to the M1 Ultra that is currently only in the $2k+ Mac Studio and no other Macs or phones so 0.1% doesn't sound too far off.
Nope. The same issues can be observed across all Apple Silicon GPUs but are most noticeable in M1s. Apple is currently the 3rd largest global PC vendor, if you add iPads they’ve been the 1st for quite some time. With wallet-share/spending power the target market is even larger.
The question is whether developers should adopt Apple’s Accelerate/Metal APIs & optimise code for TBDR.
It’s an obvious ‘yes’.
