Dynamic frequency scaling: Difference between revisions

Revision as of 11:36, 3 June 2025

Latest revision as of 12:28, 3 June 2025

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'''Dynamic frequency scaling''' (also known as '''CPU throttling''') is a [[power management]] technique in [[computer architecture]] whereby the [[Clock rate|frequency]] of a microprocessor can be automatically adjusted "on the fly" depending on the actual needs, to [[Power management integrated circuit|conserve power]] and reduce the amount of heat generated by the chip. Dynamic frequency scaling helps preserve battery on mobile devices and decrease cooling cost and noise on [[Quiet PC|quiet computing settings]], or can be useful as a security measure for overheated systems (e.g. after poor [[overclocking]]).

Dynamic frequency scaling almost always appear in conjunction with [[dynamic voltage scaling]], since higher frequencies require higher supply voltages for the digital circuit to yield correct results. The combined topic is known as cu '''dynamic voltage and frequency scaling''' ('''DVFS''').

== Operation ==