There is no one measurement of CPU speed. Different CPU's may perform differently on various tasks. For instance, you might find something like this: CPU 'A' runs program 1 in 5 secondsCPU 'A' runs...
Megahertz or gigahertz A better unit is OPS (Operations Per Second) or FLOPS (FLoating point Operations Per Second). However benchmarking CPU performance is a tricky art and there are many different...
Almost all modern CPU's are measured in mhz. Most are fast enough to have a ghz rating. Such as 2400 mhz would be 2.4 ghz. This reflects the clock speed default on the CPU.