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Processor throttling

frequency scalingAlternatively referred to as frequency scaling, processor throttling allows a computer's CPU to lower its frequency for a time, to prevent overheating or to save power.

Preventing a processor from overheating can prevent damage to the processor. Lowering the frequency during idle times (when the computer is not being used) helps conserve power, which is quite useful when dealing with laptops or other portable computers.

Also see: Overclock, CPU terms