What is clock speed in computer? Clock speed is the number of clock cycles per second a microprocessor can complete. Clock speed is measured in hertz (Hz).

Computer processors have come a long way since the first microprocessor, the Intel 4004, was released in 1971. In those days, clock speeds were measured in megahertz (MHz), or one million cycles per second. Today, clock speeds are measured in gigahertz (GHz), or one billion cycles per second.

Clock speed is an important factor in determining a microprocessor’s performance. The higher the clock speed, the more cycles the microprocessor can complete per second, …