Wait a second...

Atom was already made by TSMC for a few generations.

And the "Xeon" they spoke about is not the one usually see in normal servers, but much more embedded, and and network appliances.

I'd love to see the DEC alpha at 3nm just to spite x86. Too bad they are long extinct. Intel going down the same road.

Alpha was optimized for a much older process node. If some group managed to fabricate it on a 5nm node, it would most likely not boot; at best it would burn a bunch of power and not be that much faster than its .25um cousins.