[pedrocr]

In previous discussions about this it was pointed out that LLVM may be significantly faster at producing ARM code versus x86. The comparison may still be the one that actually matters to you but at least in part be an advantage of ARM in general and not just the M1. rust is very good at cross-compiling so compiling to ARM on Dell and to x86 on the M1 may add some interesting comparisons.

[mumblemumble]

So then the next question is, is this really an apples-to-apples comparison? It wouldn't surprise me at all if the x86 back-end takes more time to run because it implements more optimizations.