Yes they are both used on Nvidia and ATI. The task starts on the CPU, is then handed off to the GPU which then sends it back to the CPU for final processing.
That is what I see on my ATI system. I thought that maybe on a nVidia system the CPU usage is higher during GPU work. And that that is what causes the CPU time to be much higher.
Did you hear that, or do we have to speak a little louder after Dave's call?
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