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> So if everything is all the same and it doesn’t matter at all, then why have fps in excess of 60? Just because?

That is not at all what I said.

> What is “exactly the same” to you?

The different scanout speeds can probably be used to produce slightly differently looking images for 30 fps content on 30/60/120 fps displays. In practice I don't think you'd be able to notice the difference between 60 and 120 fps scanout for 30 fps content.

The GP comment is specifically refering to monitors used for working with video that's presumably already recorded at <=60FPS. That might be an edge case for general users, but for the people forking big bucks for monitors, it's all they care about.

>Just because?

With regards to display, for gamers, smoother scrolling and UI, and (for video) as an additional marketing specs-box checkmark for suckers. With regards to capture, for dropping in a lower fps timeline to get slow motion.