Clock speed.

Clock speed, measured in GHz, determines how fast a processor performs tasks. For business laptops this is usually between 1.5 and 4 GHz, ideal for data analysis, large spreadsheets and multitasking.

Modern processors often have a turbo mode, in which the speed is temporarily increased, for example from 2.5 GHz to 3.5 GHz, for intensive tasks.

The right balance between clock speed, cores and energy efficiency ensures top performance and a long battery life