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Does PerformanceTest support NVIDIA Optimus?

If you are using a laptop with NVIDIA Optimus enabled, for example those with GeForce GT 420M, 425M, 435M, 445M, 520M, 525M, 540M, 550M and 555M video cards, optimus may not correctly switch to the high performance video card when running PerformanceTest. Consequently the 3D score might not be as high as it should be as it may have been using the power saving and slower on board graphics.

You can change the NVIDIA settings to select the correct video card when performanceTest is started using these steps;

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