📝 Monitor Refresh Rate: What It Changes and How to Check It

Refresh rate describes how many times per second your screen draws a new image, measured in hertz. A 60 Hz panel shows 60 frames a second; a 144 Hz panel shows 144. The difference is best known from games, but it is not confined to them — you feel it moving the mouse pointer, scrolling a page, even dragging a window.

What a higher refresh rate actually changes

What your eye notices is not the number of frames but the gap between them. At 60 Hz each frame sits on screen for roughly 16.7 milliseconds; at 144 Hz that falls to about 7. A moving object is updated more often, so it jumps less. Reading static text, you will notice nothing. Scrolling that text, the smearing drops noticeably.

Games gain a second benefit: latency. Because the screen updates more often, the delay between your input and seeing the result shrinks. In competitive play that is a measurable advantage.

Finding out what your screen is really running at

Here is the detail that catches people out: a monitor capable of 144 Hz may well be running at 60 Hz by default. It is extremely common — someone buys an expensive display, never changes the setting, and uses it at 60 Hz for months.

The monitor refresh rate test measures what your screen is doing right now, in the browser. If the result is lower than the figure on the box, you need to raise it manually in your display settings.

Cable and setting traps

• The cable sets a ceiling. An older HDMI cable cannot carry high refresh rates at high resolution; the same monitor gives different results on different cables.
• Resolution trades against refresh rate. A panel may not support its maximum refresh rate at its maximum resolution.
• Laptops drop to 60 Hz on battery. Power saving settings do this silently.
• Two monitors have two settings. One can be at 144 Hz while the other sits at 60.

Do you actually need a high refresh rate?

Not always. For documents, email and video, 60 Hz is more than enough — films are shot at 24 frames a second anyway. High refresh rates pay off in games, fast scrolling and design work. When buying, do not let hertz be your only criterion; panel quality and colour accuracy matter more in daily use.

Motion blur is a separate question

A high refresh rate does not eliminate trailing behind moving objects. On some panels the pixels themselves change colour slowly and leave a ghost. Check that separately with the ghosting test; read together, the two results describe your screen’s motion performance properly.

Frequently asked questions

The test says 60 Hz but my monitor is 165 Hz.
Set the refresh rate manually in display settings, then confirm your cable supports it. Retest afterwards.

Can a browser give a true reading?
The browser counts the frames your screen actually presents, so it reports the rate in effect rather than the rate on the specification sheet — which is the number that matters.