Refresh Rate Test
Verify whether your display is really running at the expected refresh mode by checking the frames your browser is actually rendering.
Live FPS
Browser-side render output as a practical refresh-rate check.
0
FPS (≈ Hz)
Avg: 0 Max: 0
Display context
Resolution
0 × 0
Viewport
0 × 0
Pixel Ratio
1x
Current FPS
0
How to read the result
You are looking for the level where the reading settles, not one perfect frame number.
- Around 60 FPS usually means a 60Hz mode is active.
- Around 120, 144, 165, or 240 FPS suggests the expected high-refresh mode is active.
- Slight variation is normal; a stable range near the target is what matters.
- A hard cap far below expectation usually means a settings, cable, dock, or power-mode issue.
Common reasons high refresh fails
Most problems are configuration issues, not broken panels.
- OS display settings still left at 60Hz
- wrong cable, adapter, or port capability
- dock limitations on laptops
- GPU power-saving mode or battery restrictions
- browser or app frame-rate caps
If panel quality is your concern rather than Hz, move to the Monitor Color Test or Dead Pixel Test.