Reaction Time .info
⚡ Esports Tournament Refresh Rate | 4.17ms Frame Telemetry

240Hz Reaction Time Test: 4.17ms Frame Latency Benchmark

Experience reflex testing at the professional esports standard. Test your sub-millisecond reaction speeds, understand OLED 0.03ms pixel transitions, and measure display hardware latency.

240Hz Hardware Test
Test your reflexes on 240Hz+ high refresh rate displays
⚡ Test 240Hz Reaction Now
60 Hz Standard
16.67 ms
Base standard
144 Hz Gaming
6.94 ms
-9.73ms faster
240 Hz Esports
4.17 ms
-12.50ms faster
360Hz / 540Hz
1.85–2.78 ms
-14.82ms faster

The Click-to-Photon Latency Pipeline at 240Hz

Achieving the fastest possible reaction score requires minimizing every stage of the digital hardware pipeline:

Input Click (0.2ms) → USB Polling Rate 1000Hz (0.5ms) → Engine Render (3.0ms) → 240Hz Scanout (4.17ms) → OLED Pixel Response (0.03ms) = ~7.9ms Total Hardware Latency
FAQ

240Hz Reaction Time FAQ

Common questions regarding 240Hz displays, OLED panels, and esports hardware.

How many milliseconds does a 240Hz monitor take to display a new frame? ▼

A 240Hz monitor renders a new frame every 4.167 milliseconds. Compared to 60Hz (16.67ms), 240Hz saves 12.5 milliseconds of display pipeline delay.

Can the human eye actually perceive 240Hz and higher refresh rates? ▼

Yes. The human eye and brain do not process vision in discrete frames; rather, photoreceptors transmit continuous neural impulses. Higher refresh rates decrease retinal smear during eye tracking, making fast-moving targets visually distinct.

How does 240Hz OLED compare to 240Hz Fast-IPS LCD? ▼

OLED pixels transition between colors in 0.03 milliseconds, compared to 1ms–3ms on Fast-IPS LCDs. This instantaneous pixel response time eliminates ghosting trails completely, providing superior motion clarity for aim tracking.

Is 240Hz worth it for reaction time testing and competitive gaming? ▼

For competitive esports athletes (CS2, Valorant, Overwatch, Apex), 240Hz is the modern tournament standard. It minimizes click-to-photon latency, smooths micro-flick adjustments, and gives players the cleanest possible visual feedback.

Does 360Hz or 540Hz offer a noticeable improvement over 240Hz? ▼

Moving from 240Hz (4.17ms) to 360Hz (2.78ms) saves 1.39ms per frame. While the latency reduction is small, the enhanced motion smoothness helps elite players track rapidly jumping or strafing opponents with greater ease.

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