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Uneven frametime distribution in multi-GPU systems - an illustration in slow motion

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Uploaded on Mar 28, 2011

In this video I am giving an example how the so called micro-stuttering („Mikroruckeln") is impacting the perceived smoothness on a multi-GPU system. I am showing this at 30ish fps for illustration purposes but it occurs at every fps level, impacting the smoothness of the render output regardless of how high benchmarks showing the fps to be. Slow-Motion capturing of actual monitor ouput was done on a Casio Exilim EX-F1 in 512x384 pixels, 300 fps. So with a 10:1 higher capture rate, the non-existent synchronisation between camera an monitor should not play a decisive role.

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