The refresh rate of the monitor can change every single frame – The refresh rate can change over 100 times per second. Via NVIDIA’s G-SYNC, the monitor is now always synchronized to the frame rate – the graphics card is now controlling the monitor’s refresh dynamically, without waiting for scheduled, granular refresh intervals. This is accomplished through an equivalent of variable-length blanking intervals between refreshes. The monitor is held in a blanking interval until the next frame is ready from the GPU, and then the monitor is immediately refreshed.
You do get the “low frame-rate feel” if the frame rates go low (e.g. 30fps), however, now the monitor refresh is always synchronized to the refresh rate, eliminating stutters.
Playing at 47 frames per second? The monitor is now at 47Hz.
Playing at 131 frames per second? The monitor is now at 131Hz.
