Ghosting Test
Grey background and grid are on, look behind the UFO for trails.
Motion settings
Live readout
- FPS
- --
- Refresh (est.)
- -- Hz
- Pixels per frame
- --
- Late frames
- 0
Frame stats
- Current FPS
- --
- Average FPS
- --
- Min / Max
- -- / --
- 1% low
- --
Shortcuts
- Space pause
- R reset stats
- F fullscreen
This ghosting test starts with a grey background and a grid, the conditions where trails behind moving objects are easiest to see. Follow the UFO with your eyes and look at the area just behind it.
What to look for in a ghosting test
Dark trail
A faint copy behind the UFO means pixels change colour slowly.
Bright halo
A light or coloured edge can be overshoot from too strong an overdrive setting.
Smearing on dark
VA panels often smear on dark backgrounds. Switch the background to Dark to compare.
How to reduce ghosting
Try overdrive levels
Most monitors have an overdrive or response time setting. A middle level usually balances trails and halos.
Run at the highest Hz
Higher refresh rates shorten each frame and reduce blur.
Turn off extra processing
TV picture modes like motion smoothing can add artefacts; a Game mode is usually cleaner.
Limits
This page measures what your browser actually draws, using requestAnimationFrame. Browsers cap their frame rate at the refresh rate of the display, so the Hz value is an estimate of the rate your screen is running at right now, not the maximum it supports. It cannot measure response time (GtG), input lag, screen tearing or whether the panel itself skips frames; those need special hardware or a camera.
Ghosting FAQ
Is ghosting the same as motion blur?
Not quite. Motion blur comes mainly from how long each frame stays on screen; ghosting is a separate trail from slow pixel transitions. Both are visible in this view.
Can a website fix ghosting?
No. Ghosting comes from the panel. You can only reduce it with monitor settings.