I know it depends on the game, but still you can have a general idea what you can still enjoy a game at. Of course let's exclude strategy games where fluid movement is not as important. For example I could play XCOM2 on an old laptop with an 6670 in it. It was annoying but playable still. So let's focus on action and simulation games instead where FPS does matter. I pose this question, because we often hear that consoles are capped to 30fps in many games. Then I read an article on PC games where they say "the game is unplayable at this setting" where they show the average fps to be 35 and the minimum is sg like 25. That's already better than the console experience, so calling it unplayable is quite unfair IMO. I remember playing F1GP2 at 15fps in 1996, later I slightly raised the bar and usually aimed at a whopping 25 fps average trough the mid 2000s. I still don't expect that much as I find 40-45 fps perfectly playable in most if not all games.