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|15th July 2008, 16:20||#1|
Join Date: May 2002
What is microstuttering?
It's a product of the failure of a multi GPU solution to syncronize properly. Frame syncronization is the act of making sure that the time between frames is identical no matter where you take a measurement. In a single GPU solution one GPU builds the image, and then sends it off to the monitor. It then builds another and sends it off as well. Thus, a single GPU solution does not suffer from microstutter. In a dual GPU solution, two GPUs build seperate images. In Alternate Frame Rendering (AFR), GPU "A" must send its image to the monitor exactly half way between the previous frame from GPU "B", and the next frame (which will be from GPU "B" as well).
If I notice microstuttering, can I minimize/eliminate it? Yes. By running the game at a setting where your graphics cards are able to output more than the monitors refresh rate (that is, the maximum FPS the monitors are capible of; the pixels on your screen can only change so fast) microstuttering is eliminated completely. Most monitors have a refresh rate of 60 or 70Hz, meaning you would need 70 or 80 FPS to eliminate microstuttering.
Last edited by jmke : 15th July 2008 at 16:27.
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