The highest refresh rate monitor available at time of writing is the 24.5-inch ROG SWIFT 360Hz PG259QN with a refresh rate of 360Hz. As increasing FPS has an impact on your system performance, you should align Hz and FPS in the best possible way. While standard graphics hardware usually limits you to a refresh rate of 60Hz or maybe 90Hz, more expensive GPUs and displays can support a 144Hz refresh rate, 240Hz or even higher. While this happens only under certain scenarios, there is a point to use higher refresh rates if possible. But as an article from 2015 published in the scientific journal Nature points out “humans perceive visual flicker artifacts at rates over 500?Hz when a display includes high frequency spatial edges”. How many FPS can the human eye see – (and Hz)?Īccording to scientific studies the observable refresh rate for humans is between 50–90?Hz varying per individual. Although refresh rate doesn’t technically limit frame rate, it does effectively set a cap for what will be shown by your monitor. If frames per second (FPS) are higher than the monitor refresh rate (Hz), your display will not be able to display all of the frames your GPU is generating. While the refresh rate is defined by how often the input signal your monitor receives is repeated by the screen, frames per second (FPS) is the actual rate that images are being generated by your GPU.
The difference between refresh rate (Hz) and frames per second (FPS)
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