Re: How does FreeSync look compared to G-Sync at this point?
Posted: 05 May 2017, 10:04
I see. I wasn't aware that fps limiters had any projectional or regulatory control over framerate well below the set fps limit, though this does make sense now that I think of Unreal Engine's "bSmoothFrameRate" parameter.Sparky wrote: That's exactly what I mean by "overshoot". Framerate limiter sees framerate is too low, so it tries to correct, but because of the nature of the hitch, any correction is too much.
Not sure how to properly investigate it. To start with you'd have to be able to repeatably introduce framerate hitches of a known character, and see how the limit reacts to it. Ideally you get source code access to the framerate limiter, coupled with FCAT, so you can see exactly how much time the framerate limiter is impacting each frame.
Do you know if this behavior applies to all fps limiters, or is it limited to a certain type (in-game, CPU-side, driver-level, etc)?