Screen Refresh Rate & Frame Pacing FPS Tester
Benchmark display monitor refresh rate (60Hz, 120Hz, 144Hz, 240Hz) and frame rendering stability.
Screen Refresh Rate & Frame Pacing FPS Tester
Benchmark display monitor refresh rate (60Hz, 120Hz, 144Hz, 240Hz) and frame rendering stability
How to Use Screen Refresh Rate & Frame Pacing FPS Tester
1. Launch Refresh Rate Benchmark
Keep this browser window active and focused, then click "Start Benchmark".
2. Hardware VSync Synchronization
The engine monitors requestAnimationFrame cycles against high-resolution performance.now() hardware timestamps.
3. Confirm Display Hz & Stability
Inspect your true measured monitor refresh rate (60Hz, 120Hz, 144Hz, 240Hz, 360Hz) and frame drop metrics.
How This Utility Works
Browser monitor refresh rate benchmark using hardware requestAnimationFrame time stamps. Detects monitor refresh rates (60Hz, 75Hz, 90Hz, 120Hz, 144Hz, 165Hz, 240Hz), rolling average FPS, and 1% low minimum framerates.
Hardware testers communicate strictly with browser Gamepad, Canvas, and Display APIs. No background drivers or telemetry are installed.
Frequently Asked Questions
Can a browser test 144Hz or 240Hz monitors?
Yes, modern browsers synchronize requestAnimationFrame cycles with the hardware monitor refresh rate when hardware acceleration is enabled.