Declining FPS on core i7

[TonyD]

Originally Posted by Al Capwn

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I hope this sheds some light on the mysteries of v-sync

Thanks for that, but I do not have a problem understanding the theory, merely the affect. As I said, I have never seen frame rates being limited to dividers of the refresh rate with VSYNC enabled, but this may be due to the games in which I use it (some have apparently included a form of adaptive VSYNC for some time). In CloD it appears to function as a frame limiter, loosely enforcing an upper limit but allowing normal fluctuation at lower rates.

A new race simulator (rFactor 2) has a choice of 4 different methods of implementing the option, which should suit most tastes, but from what I’ve seen this is somewhat unusual. I have no idea which method CloD may use, but it does eliminate the tearing that becomes apparent when turning my head around rapidly in the cockpit without influencing frame rates that are less than my monitor’s refresh rate. A log of frame rates using MSI AfterBurner, both with and without VSYNC enabled, only shows a difference in rates above the imposed maximum value.