240Hz Monitor Test
A 240Hz refresh rate test verifies your esports monitor is operating at 240 frames per second — the standard for competitive CS2, Valorant, and Apex Legends players. At 240Hz, each frame is displayed for just 4.2ms, cutting input-to-display lag nearly in half compared to 144Hz. This test confirms your display, cable, GPU output, and OS settings are all correctly aligned for full 240Hz performance.
Refresh Rate
Press Start Test to detect your monitor's refresh rate
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Last Result
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Personal Best
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Session Avg
For best accuracy, close other tabs and run the test 3–5 times. Laptops may cap Hz on battery — plug in for full refresh rate.
What Are the Real Benefits of 240Hz for Competitive Gaming?
| Refresh Rate | Tier |
|---|---|
| 60 Hz | Standard |
| 75 Hz | Entry Gaming |
| 144 Hz | Gaming |
| 165 Hz | High Refresh |
| 240 Hz | Esports |
| 360 Hz | Pro Esports |
| 500+ Hz | Elite |
Frequently Asked Questions
Is 240Hz worth it over 144Hz for gaming?
For competitive esports players who can maintain 240+ FPS in their games, 240Hz provides measurably lower input lag (4.2ms per frame vs 6.9ms) and sharper motion clarity. Studies show professional players perform better at 240Hz vs 144Hz in target acquisition tasks. For casual gamers or those whose GPU can't sustain 240 FPS, the upgrade is not worth it — buy a better GPU first.
What GPU do I need for 240Hz gaming?
To consistently hit 240+ FPS at 1080p in competitive titles: RTX 3080 / RX 6800 XT or better for most games. In esports-optimized titles (CS2, Valorant, Apex at low settings): RTX 3060 / RX 6600 XT is often sufficient. Note: competitive players lower graphical settings specifically to maximize FPS. At 1440p@240Hz, you need a high-end GPU (RTX 4070 Ti or better) for demanding AAA games.
What cable is needed for 240Hz?
1080p@240Hz: DisplayPort 1.2, HDMI 2.0, or newer. 1440p@240Hz: DisplayPort 1.4 or HDMI 2.1. 4K@240Hz: HDMI 2.1 or DisplayPort 2.0 (rare). DisplayPort is strongly preferred for esports monitors due to better bandwidth and compatibility. Some 240Hz monitors only achieve 240Hz over DisplayPort — the HDMI port may be limited to 144Hz. Check the monitor's manual.
What is the difference between 240Hz TN, IPS, and OLED at 240Hz?
TN panels at 240Hz have the fastest response times (1ms GtG) but poor color and viewing angles. IPS at 240Hz (e.g., ASUS ROG Swift PG259QN) offers better colors with fast IPS response times (1–4ms). OLED at 240Hz (e.g., LG 27GR95QE) delivers near-instant pixel response (0.03ms), perfect blacks, and excellent colors — the best visual quality at high refresh but more expensive and carry burn-in risk.
Does 240Hz have lower input lag than 144Hz?
Yes. Input lag at 240Hz is approximately 4.2ms per frame (pipeline lag), versus 6.9ms at 144Hz and 16.7ms at 60Hz. In practice, the total system latency difference between 144Hz and 240Hz in competitive games is approximately 2–3ms — small but real and measurable. Professional esports organizations have extensively tested and validated this improvement for their players.
Why does my 240Hz monitor show 144Hz or 165Hz?
Common causes: using DisplayPort rather than the correct high-bandwidth cable, Windows refresh rate set below 240Hz, or the monitor's OSD has a refresh rate limiter enabled. Check the monitor OSD (on-screen display menu) for a 'Frame Rate' or 'Hz' setting. In Windows: right-click desktop → Display Settings → Advanced Display Settings → Display Adapter Properties → Monitor tab → set to 240Hz.
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