AOpen Powermaster: The Motherboard of All CPU Power-Saving Solutions?

Powermaster In Action: From 3.4 To 2.4 GHz

In practice, the Powermaster functions work surprisingly well. In fact, they're quite similar to those found in 3DNow!, SpeedStep, or Cool & Quiet without noticeable differences for users in normal or overclocked operation. But when it comes to underclocking, Powermaster's reduced power consumption and reduced noise from slower CPU fans made a welcome and noticeable change.