For reference, single GPU result with heaven benchmark. Same settings as above (1920*1200, 4xAA, 16xAF, normal tessellation, stats on the first 60 seconds of the benchmark):Originally Posted by damha
More microstutter than I've seen with any other single-GPU result, but still pretty low.
I have to say, unfortunately it isn't just nvidia cards that exhibit this behaviour. The worst microstutter results so far have come from a tri-fire 5970+5870 setup (38-48% MS index).
Sentinal: I agree that it's always hard to get across a message that people don't want to hear. Hell, I don't really want it to be true, but it is, and ignoring it won't improve the situation in the future. My hope is that with enough results gathered on enough different configurations, the evidence will become irrefutable. If I had the time and cash I'd buy a whole load of hardware and do a proper analysis and formal results writeup. But unfortunately I don't, so anyone out there who can run this test is appreciated
As for PCI-e and QPI frequency, well I will have a play around with these, but I really don't see how it can have a major effect. The microstutter comes from a lack of control in when frames are output, in AFR mode. What is needed to fix it is some form of communication between the two GPUs to more effectively time the frame outputs, or better yet, a rendering method that has all GPUs working on a single frame (SFR, tiling etc).
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