I have a hard time caring about this. Atom is IMO the idiot child in the low power CPU market: ARM designs and AMD's C-series & E-series matter more.
In my opinion the best mouse ever made was late-model Microsoft ball mouse. I could spin that thing to do a quick 180 turn and nail a pursuer with my rail gun in Quake II CTF. It was a beautiful move, just a snap of the wrist.
Try that with a new fangled optical mouse - no way!