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Actual clock speed?

post #1 of 6
Thread Starter 
So I just got my i5 2500K which is supposed to be 3.3Ghz.

Here's it a idle;


and here's it at load, showing 3.7Ghz, is that right?
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post #2 of 6
super pi is single threaded, so it is only loading up one thread, so your cpu is boosting the speed with the turbo settings. The reason why it is idling lower, is because of speed stepping, it does that to save power. Not a big deal.
post #3 of 6
That's intel's turbo boost

Read this:

http://ark.intel.com/Product.aspx?id=52210

It uses turbo boost to get more performance for the task. (The turbo is 3.7 on the 2500K as said in the link above)

(more on turbo boost 2.0) http://www.intel.com/technology/turb...ech_product+tb

The reason it's low at idle is that it slows down to save power (Intel Speedstep) when it's not needed and that means it also makes less noise (fans)
Edited by GAZ_MAN_432 - 2/28/11 at 5:15pm
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post #4 of 6
Thread Starter 
I know about the speed stepping clocking the CPU down to save power/less noise. I was just wondering about the higher clocks; so it's turbo boost, eh. Would it clock that high using other programs, say video editing?
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post #5 of 6
It all depends on the usage of the cpu. If it loads up a single core, it will clock that core up really high, if it is loading up two cores it will clock those two up pretty high but not as high. And so on and so forth.
post #6 of 6
Quote:
Originally Posted by Kornowski View Post
I know about the speed stepping clocking the CPU down to save power/less noise. I was just wondering about the higher clocks; so it's turbo boost, eh. Would it clock that high using other programs, say video editing?
Usually, Yes. It should give you more performance (I updated my post above with the Turbo Boost Info link)

This is a video of how it works: http://www.intel.com/technology/prod...d=tech_tb+demo
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