AMD PowerTune

AMD PowerTune
Design firmAdvanced Micro Devices
IntroducedDecember 2011
TypeDynamic frequency scaling

AMD PowerTune is a series of dynamic frequency scaling technologies built into some AMD GPUs and APUs that allow the clock speed of the processor to be dynamically changed (to different P-states) by software. This allows the processor to meet the instantaneous performance needs of the operation being performed, while minimizing power draw, heat generation and noise avoidance. AMD PowerTune aims to solve thermal design power and performance constraints.

Besides the reduced energy consumption, AMD PowerTune helps to lower the noise levels created by the cooling in desktop computers, and extends battery life in mobile devices. AMD PowerTune is the successor to AMD PowerPlay.

The firmware for PowerTune is executed on the System Management Unit (SMU), which is a LatticeMico32 core, and was modeled using Matlab.

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