They didn't say, but since their A17 is 3nm this is almost guaranteed to be 3nm. The 3nm process is the big improvement, the M1 and M2 were TSMC 5nm and 4nm whi

They didn't say, but since their A17 is 3nm this is almost guaranteed to be 3nm. The 3nm process is the big improvement, the M1 and M2 were TSMC 5nm and 4nm which was basically the same thing. The performance improvements here is roughly what you would expect if you knew the specs of TSMC 3nm chips.