Motion Blur Test
    Display · Motion blur

    Monitor motion blur test

    Watch a sharp object move across the screen at a fixed speed to see blur, ghosting and overdrive trails on your monitor.

    Loading test…

    Gaming setup check

    Step 9 of 9 · Mouse, keyboard and monitor, tested in the order a competitive player would.

    1. 1Mouse test
    2. 2Mouse polling rate test
    3. 3Mouse DPI test
    4. 4CPS test
    5. 5Aim trainer
    6. 6Reaction test
    7. 7Keyboard ghosting test
    8. 8Refresh rate test
    9. 9Monitor motion blur test

    That's the last step. Start the controller check.

    New monitor check

    Step 5 of 5 · Run these while you can still return the monitor.

    1. 1Dead pixel test
    2. 2Backlight bleed test
    3. 3What is my screen resolution?
    4. 4Refresh rate test
    5. 5Monitor motion blur test

    That's the last step. Start the gaming setup check.

    About the monitor motion blur test

    Updated

    The motion blur test moves small, high-contrast UFOs across three rows at a fixed speed in pixels per second, stepping once per frame using the browser's real frame timing. You can pick 240 to 1920 px/s and a dark, mid-grey or light background, because pixels change at different speeds between different shades. It shows the measured frame rate, how many pixels the object jumps each frame and how many recent frames were dropped. It lets you see blur, ghosting and overdrive artefacts; it does not measure response time.

    How to use it

    1. Close other tabs and keep this one in front so frames aren't dropped.
    2. Follow the top UFO with your eyes rather than staring at one spot.
    3. Look for a smeared edge (blur), a faint copy behind it (ghosting) or a bright or dark halo (overdrive).
    4. Switch backgrounds and speeds, and compare your monitor's overdrive or motion blur reduction settings.

    Frequently asked questions

    What is the difference between blur and ghosting?

    Blur is a soft, smeared edge caused by your eyes tracking an object that sits still for a whole frame, plus slow pixel transitions. Ghosting is a distinct faint copy trailing behind the object.

    Why does the UFO look sharper at higher refresh rates?

    At a higher refresh rate the object moves fewer pixels per frame and sits still for less time, so your eyes smear it less. The Step reading shows the jump size.

    Does this measure my monitor's response time?

    No. A browser can't measure how fast pixels change. The test shows the artefacts so you can compare settings by eye; response time needs a camera or a photodiode.