Clock rate
From Sega Retro
Clock rate is a term used to measure how many individual 'cycles' a processor can execute in one second. Can also be referred to as "clock speed". Generally, processors tend to take multiple cycles per instruction, and so the clock rate is not really a plausible way to compare two different types of processor.
This short article is in need of work. You can help Sega Retro by adding to it.