Quote Originally Posted by boxleitnerb View Post
First, FPS play a role: With high fps you are usually rather CPU bottlenecked, and then the offset slowly vanishes as the CPU dictates the frequency of the displayed frames and both GPUs have to wait in an even pattern. With low fps, most of the time there is a GPU bottleneck. The "deeper" this bottleneck is, the worse the problem with microstuttering.

Second, has it ever been proven that without a CPU bottleneck additional GPUs lessen microstuttering? By proven I mean frametime measurements for at least 5 games, no CPU bottleneck, data for both CF and SLI and complete disclosure of GPU and CPU load and graphic settings.
1. You might be correct, I haven't ever considered going 2-card so I haven't done my research. My point was entirely that you will encounter microstuttering regardless of if you have rediculously high FPS.

2. You can look it up for yourself, but I'm pretty positive I've seen reviews confirming that 3 card has statistically significant less microstuttering.