You’ll notice a higher clock speed when opening programs, files and exporting photos. The higher the number, the faster the computer (when comparing like-for-like laptop/desktop models). Clock speed is measured in gigahertz (GHz, one billion hertz), and tells you how many operations a processor can do each second.When looking at a processor, there are two main figures you’ll see time and time again.
Intel processors: key terms you need to know Looking for a new computer? Our tough lab tests reveal which are worth your money - see our laptop reviews and our desktop PC reviews. In this guide, we’ll explain what different Intel processor models mean and what sort of user they’re best suited for. If you’re buying a computer, chances are it’ll have an Intel processor on board, although a small number come with AMD chips and newer Macs come with the M1 processor.