Display Input Latency

Discussions focus on the perceptibility and impact of input and display latencies measured in milliseconds, frequently compared to frame times at refresh rates like 60Hz (16.7ms) and higher, especially in gaming and real-time applications.

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Keywords

e.g II FPS BOLD CRT LCD GPU frames frame delay refresh input latency cursor ms fast real time

Sample Comments

foota Apr 16, 2020 View on HN

I think there's delay regardless of the refresh rate.

fred256 Jun 5, 2023 View on HN

Unless I misunderstand, it's less than a frame at 60 Hz (= 16.7 ms per frame).

TeMPOraL Sep 22, 2023 View on HN

1 - 2 frames is a lot of time and latency this big is perceptible in many tasks, fast-paced videogames being just one of them.

SAI_Peregrinus Jun 25, 2022 View on HN

Most things should complete in 16ms or less. Preferably less, some people have monitors with faster refresh rates than that.

Hammershaft Oct 10, 2023 View on HN

100ms is 6 frames of input latency at 60hz! Absolutely noticable.

Ballas Jul 27, 2020 View on HN

Your display pipeline has more latency than 31.7ms...

viraptor Sep 28, 2020 View on HN

Why do you think it's not going to happen? And for which use case?The time budget to refresh a video frame is 8ms on 120HZ if everything else came free. In practice closer to <4ms. So even looking at the close to worst conditions, that's about the delay of the sound traveling a meter - should be fine for a lot of real life applications.

zamadatix Jun 6, 2023 View on HN

12ms was the passthrough latency. Screen refresh rate is likely faster.

bspammer Nov 12, 2025 View on HN

Much less than, 1 frame is 16ms

nathants Jun 29, 2023 View on HN

many pc games are targeting 4ms per frame. performance matters in some places.