Yeah, the M4 Max actually has pretty decent MBW - 546 GB/s (cheapest config is $4.7K on a 14" MBP atm, but maybe there will be a Mac Studio at some point). The big weakness for the Mac is actually the lack of TFLOPS on the GPU - the beefiest maxes out at ~34 FP16 TFLOPS. It makes a lot of use cases super painful, since prefill/prompt processing can take minutes before token generation starts.