How Is Computer Processor Speed Measured?

Computer processor speed is usually measured in gigahertz (GHz), or a billion cycles per second, which is the rate that instructions are fetched, decoded, and executed.
A “gig is equivalent to 1,073 million (109) while a ‘hertz’ represents the number of cycles per second. That means GHZ implies more operations completed in one second than hertz denotes.

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