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UFO Test - Screen Refresh Rate & FPS Tester

Online monitor FPS and refresh rate testing tool that visually helps users detect and understand their screen's current performance

How to Use UFO Test

1. Click Start Test: Observe the UFO movement on your screen

2. Check animation smoothness: If the UFO moves smoothly, it indicates a high refresh rate; if there's noticeable stuttering or ghosting, the refresh rate may be low

3. View test data: The system will automatically detect and display current refresh rate, maximum refresh rate and stability data

4. Adjust display settings: Based on test results, you can adjust refresh rate in system display settings for optimal experience

UFO Test - Screen Refresh Rate Test

UFO
Current Refresh Rate

Test Data

Current Refresh Rate
-- Hz
Max Refresh Rate
-- Hz
Stability
--%

System Environment

Screen Resolution
Detecting...
GPU
Detecting...
Operating System
Detecting...

UFO Test - Frequently Asked Questions

1. What is screen refresh rate?

Screen refresh rate refers to how many times per second a display can refresh the image, measured in Hertz (Hz). For example, 60Hz means the screen refreshes up to 60 times per second. This value determines the upper limit of smoothness - higher refresh rates result in smoother visuals.

2. What's the relationship between refresh rate and frame rate (FPS)?

Frame rate (FPS, Frames Per Second) refers to how many frames your GPU outputs per second. When gaming or watching videos, FPS testing shows your device's actual output capability. However, even with high FPS, if your monitor's refresh rate is low (e.g. 60Hz), you'll only see 60 frames even if your GPU outputs 100.

3. What's a good refresh rate?

Generally, 60Hz is the basic standard, 75Hz-144Hz is good for daily use, and 144Hz+ is ideal for gamers.

4. Why are test results unstable?

Assuming no hardware or connection issues, instability may be caused by system load, browser performance, or hardware limitations. If there's discrepancy between this tool and professional/official tools, please refer to the professional/official results.

5. How to improve screen refresh rate?

Adjust refresh rate in display settings, ensure GPU drivers are up-to-date, and use monitors/cables that support higher refresh rates.

6. Is UFO ghosting normal?

Minor ghosting is normal, but significant ghosting may indicate low refresh rate or slow monitor response time.

7. Can I test phone screen refresh rate?

Yes, but mobile browsers may have limitations. We recommend using native apps or professional tools for mobile testing.

8. Does browser affect test results?

Yes, different browsers have different rendering engine performance. We recommend using modern browsers like Chrome or Edge.

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