Refresh Rate questions, fixes and result guides.
Practical answers for common refresh rate problems, confusing results and setup questions — with a direct path back to the live test.
How do I test my monitor's actual refresh rate?
Move the browser to the monitor you want to test, start the refresh-rate sampler and keep the tab visible until it finishes. Compare the estimate with the display mode selected in your operating system.
60 Hz vs 120 Hz vs 144 Hz: what changes?
Higher refresh rates shorten the time between possible screen updates and can make motion and pointer movement look smoother. The benefit depends on content frame rate, hardware performance and how sensitive you are to motion differences.
Why does higher refresh rate feel smoother?
A higher refresh rate reduces the interval between display updates, so moving objects and pointer positions can be shown at more points in time. That can reduce visible judder and lower part of the display-side latency.
Why does a 144 Hz display show 143 or 145 Hz?
Animation-frame timing has normal jitter and some displays use fractional or variable timing. The test uses many samples and robust averaging rather than one frame.
What is the difference between refresh rate and FPS?
Refresh rate is how often the display can update; FPS is how often content is rendered. They are related but are not the same measurement.
How accurate is this refresh rate tool?
Browser throttling, variable refresh rate and background load can affect the estimate.
What should I do if the refresh rate result looks wrong?
Check OS refresh settings, disable power saving, move the browser to the correct monitor and close full-screen video or remote desktop apps before retrying.