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    Opening Intel Control Panel increases performance of CPU to GPU transfer on Kaby Lake?

    TSchnitzler

      On 3 different Kaby Lake CPUs (i7 7700, i5 7500, i7 7500U) I'm seeing performance of CPU to GPU transfer (using Direct3D11 2D texture and Map/Unmap to upload data) is way lower as long as I do not open up the Intel Control Panel. As soon as I open it up and enter for example the "Display" tab the performance increases and I can upload data to the GPU much faster. In my test application that is 64 fps vs. 80 fps @ 3840x2160. As soon as I close the Intel Control Panel the frame rate goes down to 64 fps again.

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