3 ms·
> it's pretty clear that the M1 would not perform as well if its decoders were as narrow as current x86 cores This would imply that it's able to sustain ILP gr
by nkurz 6y ago
> it's pretty clear that the M1 would not perform as well if its decoders were as narrow as current x86 cores
This would imply that it's able to sustain ILP greater than 4 (or maybe 5 with macro-fusion). Does it actually manage to do this often? If so, that's really impressive. I was guessing that most of the advantage was coming from the improved memory handling, and possibly a much bigger reorder buffer to better take advantage of this, but I'm happy to be shown otherwise.