I would've thought the 5750 would be fast enough for that as well.
You can easily test if the GPU is the bottleneck by just lowering the scaling algorithms, and see if the problem goes away.
That said, my 450 can downscale 1080p60 when in window mode without frame drops. I don't have a way to test upscaling, really.
With ATI/AMD, it might also be a driver thing, i remember reading some thread about 60fps issues...
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LAV Filters - open source ffmpeg based media splitter and decoders
Last edited by nevcairiel; 2nd September 2011 at 07:06.
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