Some cpus, particularly those in notebooks but increasingly in desktops also, have the ability to ramp back the processor clock frequency when system activity (or sometimes battery levels) are low.

Anyone know how to discover the current processor clock frequency?

For now I'm interested in doing this for Intel cpus under Win32, but pointers to the availablity of this information for other hardware and platforms could be useful in the longer term.

Update: To clarify, the clock frequency information I am interested in, is the current clock frequency, when it may have been dynamically adjusted to save power as with Intel SpeedStep technology. AMD has similar technology, and other processor manufactures soon will have if they do not currently. The problem is how to detect this information, as it gets dynamically adjusted up and down, at runtime.

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In reply to Current processor frequency? by BrowserUk

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