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Old 12-13-2010, 06:56 PM   #1 (permalink)
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Default C3/C6 power saving option cause much faster memory benchmark

When I was tweaking the cpu features, I enabled C3/C6 (before it was disabled), and I noticed a huge increase in memory speed.






Notice in the second one, I'm running same timings/frequency, except C3/C6 turned on. Noticeable difference in speed.

How in the world does a power saving option INCREASE memory speed?

Is c3/c6 somehow affecting the memory controller / QPI link?

Any ideas on the matter will be appreciated

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Old 12-13-2010, 07:28 PM   #2 (permalink)
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Default Re: C3/C6 power saving option cause much faster memory benchmark

It could be anything, there might of been a process like Windows Update checking for updates in the background. I would run multiple tests of each setup per benchmark to verify the data and then you should run a few different benchmarks to verify it isn't just a software preference.
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Old 12-13-2010, 07:40 PM   #3 (permalink)
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Default Re: C3/C6 power saving option cause much faster memory benchmark

I have, each yielded results varying by no more than a couple hundred mb/s.
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