• kadupse@alien.topB
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    10 months ago

    At 60Hz, each frame is shown for ~16ms, while at 70Hz each frame gets displayed for ~14ms.

    2ms is not nothing… But it’s below the treshold for human perception. While LCD screens have a little bit of a blur as the time for each subpixel to transition is somewhat long, the change from 60Hz to 70Hz amounts to nothing but a placebo.

    • Nyaaori@alien.topOPB
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      10 months ago

      But it’s below the treshold for human perception

      Not exactly true, depending on which sense and , humans can perceive differences down to amounts quite small, even tiny values like 5-10 microseconds for hearing frequencies are noticeable.

      For input-visual response time, differences down 0.5-1 milliseconds can be perceived by those sensitive to it and/or trained for it, 2 milliseconds happens to be well above that, though on average 4-6 milliseconds would be an expected threshold without knowing what to expect.

      When using gyro-to-mouse input, difference between 60 and 70hz is perceivable, though a small change and not immediately noticeable, often it would be to enough to throw off my inputs for timing-sensitive things should I forget about increasing refresh rate.

      Motion inputs often have significantly higher sensitivity to response time variation, adding say, 2msec extra latency into a VR headset and you would be far likelier to end up feeling nauseous after/during use.