Is my CPU bottlenecking my GPU?

December 19, 2011 at 13:23:22
Specs: Windows 7
I hope I have weirded this correctly, basically ever since I upgraded to a EVGA GTX 580 1.5GB I have been having problems in Skyrim. Basically low FPS outdoors with low GPU usage, in BF3 I get fine FPS indoors on low player servers but outdoors it goes down as does GPU usuage. Saints Row 3 also has the same issues, I've always had bad luck with PCs so either I'm cursed or my CPU is holding me back. My specs are:
8GB DDR2 @ 1066mhz
GTX 580 1.5GB
AMD Phenom X4 II BE 965 3.4Ghz
64GB Crucial SSD (For OS)
1.5TB Western Digital (Games)

Windows 7 64bit

I hope someone can give me some tips on upgrading, I have tried EVERYTHING. Changing drivers etc, none of it helps :(

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December 19, 2011 at 18:11:11
You need to test somehow. Consider performance monitor and maybe cpuz gpuz.

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December 19, 2011 at 21:02:51
You have not supplied the make and model number of your power supply. This can be very important when diagnosing graphics issues when using gaming graphics cards. You may have only minimal or marginal Wattage OR available Amperage being supplied you your graphics card, if this is the case, it will appear to work well, but at times of higher stress (graphics and/or system in general), it may not be getting enough amperage to continue operating at this peak level and is throttling back. This can happen even if the listed wattage appears to be more than the minimum required for your card (especially on PS' with multiple 12 volt rails)
Post make and model of your power supply and if possible, your total Wattage AND you Amperage rating on your 12 Volt Rail(s).

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