Processing power is ultimately the measure of the number of tasks a CPU can do at any given time. A lot goes into determining what makes one CPU better than another, and there isn’t always a clear favorite. Cpu’s work by breaking down computation steps into instructions that an electronic chip (think of it as the brain) tells its neuro-circuit to perform. When all those instructions are compartmentalized and completed, you’re done. To sum it up: 1) The architect designs a particular kind of CPU; 2) individual logic gates within those CPUs produce signals; 3) the circuit board (a large electronics system containing many other components like wires and passive elements to make sure electrical current flows properly through them).