• deranger@sh.itjust.works
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    3 months ago

    Electron beams scan insanely fast, that isn’t the limiting factor. Getting that much bandwidth across a VGA cable is tough. If you wanted super high refresh rates on old CRTs you’d have to drop the resolution. Same concept.

    • bionicjoey@lemmy.ca
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      3 months ago

      Ah. I see, so reducing the resolution was more about sending frames to the monitor faster, not about optimizing the tube hardware’s behaviour

      • Dave.@aussie.zone
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        3 months ago

        Yeah basically you can only signal “on-off” so many times a second in a vga cable before the ons and offs get blurry and unusable. So you can trade lower resolution for a higher frame rate as long as you keep the total number of on-offs below the limits.