Messages in this thread | | | From | Wes Felter <> | Subject | Re: Status of X86_P4_CLOCKMOD? | Date | Mon, 27 Feb 2006 15:17:37 -0600 |
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Johannes Stezenbach wrote:
> If someone has done measurements I'd be interested to > know the numbers about the actual power savings which > can be achieved by using P4 clock mod. I don't expect > it to be much, but I bet it's more than 1W.
Clock modulation can reduce power by 40W on a 3.6GHz Xeon when the system is running a high-power application (e.g. Linpack). (It also reduces performance by a factor of 6-10). Clock modulation saves no power at all during idle.
Wes Felter - wesley@felter.org
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