ElI5: Our brain uses about 10W of power, when a computer can use 100W. With our brain doing significantly more than a computer, how is it so much more efficient?

Question

ElI5: Our brain uses about 10W of power, when a computer can use 100W. With our brain doing significantly more than a computer, how is it so much more efficient?

In: Technology

Answer 1

“Efficient” is a bit of an odd word to use when talking about CPUs, seeing as their efficiency is basically 0% as they only produce heat. CPUs are steadily increasing their IPC while reducing their power-draw, so it is limited by current manufacturing and not necessarily tied with current-day power draw. Doing significantly more than a computer is also subjective, a CPU can do quite a lot simultaneously that we would never be able to do.