Your graphics card is a webcomic artist and your monitor is the website publisher.
Because the artist is poor, the website refreshes once a day. If the artist draws one frame per day, the timing is matched so that the new comic gets published the next day.
However, sometimes the artist has issues and takes two or more days to draw a frame. When the website doesn’t get any new uploads, it just displays the same comic as before. This can lead to timing issues as the daily comic erratically updates every 2 days, then 1, then 3, etc.
Sometimes, the artist draws rapidly, making more than one frame a day! But only one frame can be uploaded a day and only the latest frame gets uploaded. You can get into a situation where you skip displaying a frame, making the story feel like it’s jumping ahead!
Your monitor refreshes at a rate in Hertz which is a measure of “per second” much like frames per second. If your FPS goes below the refresh rate, your monitor will display the same frame more than once, sometimes leading to detectable stuttering. This effect is reduced if your monitor refreshes faster. If your FPS goes above the refresh rate, the monitor can’t refresh fast enough and you lose displayed frames.
New adaptive sync methods (Freesync, Gsync) tell the monitor to refresh exactly when a new frame is ready, eliminating these timing issues.
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