• Directory of Internet terms
  • Gigahertz — Usually abbreviated to GHz. A unit of measurement relating to the Clock Speed of a computer or, put simply, a measurement of how fast its Central Processing Unit (CPU) runs. Typical clock speeds of modern computers range from 500 MegaHertz (500MHz) upwards. Faster clock speeds are normally expressed in GigaHertz (= 1000MHz). See Hertz, Microprocessor.