> NO TEARS BEFORE BEDTIME
One of the problems gamers can encounter with fast graphics is called screen tear, and it happens when the GPU is pumping out data faster than the display can refresh. That can mean multiple images appear on screen at the same time instead of consecutively. The resulting distortions can be minor or game–breaking, and GPU firms have come up with ways to solve them with intelligent vertical synchronization.
To simplify a complex task, G–Sync and FreeSync adjust the data being sent to the display so that it doesn’t receive a new frame until it’s rendered the previous one. This ensures that your display doesn’t drown in data that’s coming too quickly for it to cope with.
We aren’t aware of screen tearing on ProMotion displays, and we don’t expect to encounter it in the iPhone 13 either: the GPU in Apple’s A– and M–series systems is Apple’s own, so it can be matched perfectly with the iPhone or iPad’s display.