While televisions, computer monitors, smartphones, and tablets all have displays, the qualities and features each must deliver are different.

The refresh rate is how frequently the monitor updates the image on the screen. If your GPU’s frame rate is higher than your monitor’s refresh rate, you’re going to run into some problems.

For Multi-Monitor Setups: Test Patterns on Both Displays If you have more than one display connected to your computer, you'll need to use a combination of your OS's tools and the on-screen settings.

If you monitor CPU temperature, you can check if this is happening and try to fix the underlying issue.

Which? expert reviews of the best computer monitors from Apple, Lenovo, Samsung and more. We test PC displays in a range of sizes to find out which offer a sharp, crisp screen for work, gaming and ...

This will display the refresh rate your monitor and computer are currently set to. It usually defaults to 60Hz, even if your monitor technically has a higher refresh rate.