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Frames Per Second (FPS) Test

Stress-test your GPU and browser rendering pipeline with live particle physics. Monitors real-time FPS, 1% Low, 0.1% Low micro-stutters, and frame-time millisecond graphs.

60 FPS
Average FPS 0 fps Mean throughput
1% Low FPS 0 fps Smoothness index
0.1% Low FPS 0 fps Worst stutter spikes
Minimum FPS 0 fps Absolute dip
Maximum FPS 0 fps Peak frame rate
Screen FPS & Frame Pacing Guide

How to Use This Test

  1. Observe the real-time FPS Counter and animated motion bar above.
  2. Check the Frame Time (ms) readout: for 60Hz screens, 16.6ms is ideal; for 144Hz screens, 6.9ms is ideal.
  3. Review the 1% Low and 0.1% Low metrics to spot subtle stutters and dropped frames.
  4. Click "Reset Stats" to clear accumulated frame history and run a fresh benchmark.

Why 1% Low FPS Matters More Than Average FPS

Your screen can show an average of 60 FPS while still feeling choppy if frames are delivered irregularly (frame pacing issues). The 1% Low FPS metric reveals the slowest 1% of frames. When your 1% Low matches your average FPS, motion is completely fluid and stutter-free.

FPS vs. Monitor Refresh Rate (Hz)

Refresh Rate (Hz) is how many times per second your physical monitor refreshes its image. FPS (Frames Per Second) is how many new images your graphics card produces. Web browsers sync their rendering directly to your monitor's refresh rate via VSync (e.g., 60 FPS on 60Hz, 144 FPS on 144Hz).

Why Is My High-Refresh Monitor Capped at 60 FPS?

If you have a 120Hz, 144Hz, or 240Hz monitor but this test shows 60 FPS:

  • Windows Refresh Rate: Check Settings > System > Display > Advanced Display and ensure your monitor is set to its maximum refresh rate, not 60Hz.
  • Hardware Acceleration: Ensure "Use graphics acceleration when available" is turned on in your browser settings.
  • Battery Saver Mode: Many gaming laptops automatically throttle displays to 60Hz when running on battery power.