The speaker identifies switching frequency, switching power efficiency, and heat dissipation as three factors that limit compute.

“... when you try to say, "Hey, what limits compute?" Okay? It's how fast can you do the switch-”

“... so the frequency of the device. How much power does it take in order to do that switch, so the power efficiency of it. And the second one is how do you dissipate the heat that was generated by doing that switch, and that's the thermals piece of it.”