120Hz motion target
120 FPS Test - Check 120Hz Motion Online
Use this 120 FPS test to see whether your browser and display are delivering motion near a 120Hz target. It compares 60, 120, and 240 FPS motion and measures your real frame timing.
120 FPS readiness
Measure against a 120 FPS target
Measured average
Result: --
Current FPS
Frame time
Target match
You need both high rendered FPS and a high-refresh display to see true 120 FPS motion. A 60Hz screen cannot display 120 unique updates per second.
Motion comparison
Compare 60 FPS, 120 FPS, and 240 FPS side by side
The 120 FPS row uses smaller motion steps than 60 FPS. The improvement is easiest to see when your display is running at 120Hz or faster.
If 120 FPS does not show up
Check display mode before assuming your hardware is slow
Many devices ship with high-refresh panels but run the browser at 60 FPS under certain power, thermal, or external display conditions.
Use a 120Hz or faster display mode in system settings.
Keep the tab active and avoid screen recording during the test.
Disable battery saver, low power mode, or browser energy saver.
If the result stays near 60 FPS, the browser or display mode is probably capped.
How to read a 120 FPS test
120 FPS requires both rendering speed and a 120Hz display path
A 120 FPS test checks whether the browser is receiving animation callbacks near 120 times per second. That number depends on the display mode, graphics stack, browser behavior, and current system load. If the test reports near 120 FPS, your browser is likely presenting frames close to an 8.33 ms interval.
If the result is near 60 FPS, it does not automatically mean the device is weak. Many 120Hz laptops, tablets, and phones switch to 60Hz in battery saver, when connected to some external displays, when screen recording is active, or when the browser decides to conserve power. The first step is always to verify the active refresh-rate setting.
For the best comparison, run the 120 FPS test once at the default setup, then run it again after changing only one variable. For example, compare battery saver on versus off, or laptop display versus external monitor. Changing one setting at a time makes the result much easier to trust.
60 FPS vs 120 FPS
At 60 FPS, each frame lasts about 16.67 ms. At 120 FPS, each frame lasts about 8.33 ms. That shorter frame interval can make scrolling, pointer movement, and fast animation feel more immediate on a compatible display.
120 FPS vs 144 FPS
The difference between 120 FPS and 144 FPS is smaller than the jump from 60 FPS to 120 FPS, but it can still matter for fast camera movement and competitive games. Use the measured frame time to compare those targets more clearly.
When 120 FPS feels choppy
A page can average near 120 FPS but still feel uneven if frame pacing is unstable. Watch for sudden dips, high frame-time variation, background tasks, overheating, or a display mode that changes refresh rate while the test is running.
120Hz test and FPS checker
Use this page as a 120Hz test when you need a browser-based 120 FPS checker. It helps separate a true high-refresh display path from a browser or power mode that is still capped near 60 FPS.
120 FPS test FAQ
Common questions about testing 120 FPS online
Can I see 120 FPS on a 60Hz monitor?
A 60Hz monitor cannot display 120 unique visual updates per second. The browser or system may still render frames quickly in some situations, but the screen itself refreshes only 60 times per second, so true 120Hz motion is not visible.
Why is my 120Hz laptop showing 60 FPS?
Check display settings, battery saver, browser energy saver, external monitor settings, and graphics control panels. Some laptops also switch refresh rates automatically depending on battery level, window focus, or thermal conditions.
Is 120 FPS enough for gaming?
For many players, 120 FPS is a strong target because it halves the frame interval compared with 60 FPS. Higher targets such as 144 FPS or 240 FPS can improve motion clarity further, but the benefit depends on the game, display, and input setup.
How do I make the 120 FPS result more reliable?
Keep the tab active, close heavy apps, disable power saver, stop screen recording, and run the test twice. Compare the average result and frame time instead of relying on a single instant reading.
Should I test 120 FPS on an external monitor?
Yes, if you normally use one. External monitors can use a different cable, refresh-rate setting, scaling mode, or graphics path than the built-in screen. Test the display you actually use for gaming or motion work.