Even Apple has to abide by the laws of physics. 3nm is fast, but a small, tightly packed, passively cooled device containing a large, heat generating element powered by a another large, heat generating element is unlikely to outperform a well ventilated, actively cooled device that is able to draw power from an outlet.

This is of couse ignoring the Apple reality distortion field, which in recent memory has succesfully perpetuated the idea that a tiny photo sensor can outperform a large one.