Frame rates describe a computer’s graphical output, measured by the number of still frames it produces every second. A higher frame rate has the potential to result in a smoother image, while a lower frame rate could lead to choppiness.
For PC games, frame rates are generally determined by both hardware and in-game settings. As such, frame rates tend to vary from game to game, and increasing your frame rate for a given experience might depend on a number of variables.
What are refresh rates?
Refresh rates describe the frequency at which a monitor redraws the screen based on the visual information it receives. The unit “Hz,” which essentially translates to “cycles per second,” describes how many times a monitor redraws the image it’s displaying every second.
Examples of refresh rates include 60Hz, 120Hz, 144Hz, and even 240Hz. You can typically select from your monitor’s supported refresh rates either in-game or through your computer’s advanced display settings as well.
How are they related?
While the two terms describe different processes executed by different pieces of hardware, they do have a relationship to each other when conveying video.
When refresh rates and frame rates differ from one another in significant ways, unwanted visual effects might occur. For example, if the frame rate of a computer’s graphical output is higher than what a monitor can handle, it may occasionally display visual information from more than one frame at once, an effect called “screen tearing.”
Luckily, VSync — which stands for “vertical synchronization” — technologies exist specifically to answer these problems. VSync technology helps align refresh rates with frame rates by placing a limit on the FPS output of a computer, allowing for consistent image quality.
