Päivitystaajuutta

Päivitystaajuutta, known in English as refresh rate, refers to how many times per second a display device, such as a monitor or TV screen, updates the image it shows. It is measured in Hertz (Hz), where one Hertz equals one update per second. A higher refresh rate means the image on the screen is redrawn more frequently, resulting in smoother motion and a more fluid visual experience.

For example, a monitor with a 60Hz refresh rate updates the image 60 times every second. A monitor with a 144Hz refresh rate updates the image 144 times every second. This difference becomes particularly noticeable in fast-paced content like video games, sports broadcasts, or action movies. With a higher refresh rate, motion blur is reduced, and fast-moving objects appear clearer and more defined.

The refresh rate is distinct from the frame rate of a video or game, which represents the number of frames per second rendered by the graphics card. While related, they are not the same. To take full advantage of a high refresh rate display, the content being displayed must also be capable of producing a high frame rate. If a game is only rendering at 30 frames per second, a 120Hz monitor will still only show 30 unique frames, albeit repeated more often. However, a high refresh rate monitor can still provide a smoother visual experience even with lower frame rates due to its ability to reduce input lag and display motion more cleanly.