Refresh Rate Test

Sampling live · no fullscreen needed
Current FPS
0
Max
0
Min
0
Avg
0
Frame time (last 120 frames)StableSpike >20ms
Motion block speed
Rating
Below 60Hz — check settings
Measured below spec? Checklist
  • 1.Select the highest refresh rate in OS display settings
  • 2.Cable: DP 1.2+ / HDMI 2.0+ required for high refresh
  • 3.Check GPU control panel for a 60Hz lock
  • 4.Laptop power-saving mode forces 60Hz — plug in
SCREEN INFOLIVE
Physical Res
1280 × 720
Logical Res
1280 × 720
DPR
1
Color Depth
24-bit
Refresh Rate
—
Aspect Ratio
16:9
Color Gamut
sRGB
Panel Depth
8-bit

Professional Refresh Rate Test

Live rAF sampling

Per-frame statistics via requestAnimationFrame + performance.now, reporting current/max/min/avg FPS every second.

Frame-time graph

Canvas bar chart of the last 120 frames; spikes over 20ms are highlighted red.

3-speed motion block

Constant-velocity blocks at 1x/2x/4x make smoothness differences visible.

What Is Refresh Rate?

Hz (refresh rate)

How many times per second the panel redraws. 60Hz = 60 redraws, limited by panel and cable bandwidth.

FPS (frame rate)

Frames produced by content per second. Above Hz the extra frames are dropped; below Hz stutter appears.

Frame time (ms)

Interval between frames: 1000/FPS. 16.7ms≈60Hz, 6.9ms≈144Hz. Less variance = smoother.

How to Use

01

Watch the dashboard

Sampling starts automatically; wait 2-3 seconds for the reading to stabilize.

02

Read the frame-time graph

Even green bars = stable output; red spikes = dropped frames or scheduling jitter.

03

Compare with rating

If the measured value is below spec, work through the troubleshooting checklist.

Common Refresh Tiers

60Hz Standard

Fine for office & media

  • + Best compatibility
  • + Power efficient
  • − Visible drag when scrolling fast

120-144Hz

Sweet spot for gaming

  • + Clearly smoother
  • + Affordable
  • − Needs DP/HDMI 2.0 cable

240Hz+ Esports

For competitive players

  • + Extremely responsive
  • + Lowest input lag
  • − Diminishing returns
  • − Higher power draw

VRR

FreeSync / G-Sync

  • + No tearing
  • + Smooth at low fps
  • − Needs GPU + panel support

Optimization Tips

Windows: Settings → Display → Advanced, manually pick the highest refresh rate.

Use certified DP 1.2+ / HDMI 2.0+ cables; adapters may cap at 60Hz.

Plug in laptops and use the Best Performance power plan.

Browser tests follow the OS compositor; verify in-game with a frame counter.

FAQ

Test Environment

  • Close GPU-heavy background apps
  • Plug in and disable power saving
  • Wait 2-3s for stable readings
  • Test each monitor of a multi-display setup separately

Related Tools

Ghosting Test

Moving blocks reveal smearing

Screen Tearing Test

Fast stripes expose tearing

Flicker Test

Camera method for PWM flicker

Resolution Checker

Auto-read all display specs

This test is step 5 of the Test Wizard

Join the Wizard →