Comment by angoragoats

Yeah this is just not the case at all; a 5090 or any of the recent nvidia workstation cards all fit this criteria.

Also, while memory bandwidth is important, it isn’t the only consideration. Apple’s architecture has memory bandwidth equal to a mid-range consumer GPU, but its GPU speed is much, much worse than, say, a 5080 or 5090. This translates into e.g. much slower time to first token on Mac systems compared to dedicated GPUs.