Gruber's strange assumption here is that a new number means some major improvements. Apple has never really been consistent about sticking to patterns in product releases.
It's on a new fab node size.
It also have more CPU cores than it's predessor (M3 with 8-core vs M4 with 10-cores).
Gruber's strange assumption here is that a new number means some major improvements. Apple has never really been consistent about sticking to patterns in product releases.