Then you can load World of Warcraft and the CPU will run, pretty much continuously, at or near max clock speed because it needs to run at or near max clock speed for that application (it'll likely be running in Turbo for WoW). Every second that the CPU spends in a lower power state, saves power. I'm pretty sure they've ironed out the pretty obvious (user created, in your case, most likely) kinks that you're pointing out.ĪGAIN: You can do this, without capping the top speed anywhere and you will still save battery life because the CPU will underclock itself when it's idle and when you're running applications that don't need the power - like Notepad, or when you're just reading a page or writing a comment in a web browser. AMD Calls this PowerNOW technology, IIRC, and it's pretty old tech. It just makes sense to use this toggle - and it should be enabled by default (IIRC). You can also set it to only do it when the device is on battery, so that it always runs at max clock speed when it's plugged in. This means there is nothing but benefits from using the toggle. If an A-10 has a 2.1GHz Clock Speed with up to 2.9GHz Turbo, you can set Catalyst Control Center to allow the CPU to Underclock itself down to about 1.3Ghz - WITHOUT capping the top speed.
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