Persistence of vision starts to kick in around 24 fps. The human eye then can tell difference up to a few hundred fps with reduced returns as you go up. Around 400-800 fps depending on age, gender and and a few other factors you lose the ability to tell detail, then color, then motion then anything but if light is on or off. Eventually at high enough fps you even lose that ability.
The US Air Force actually did lots of studies on this back in the day most are floating around.
The simple result was that 24-30 fps is 99.999% enough for anyone to have motion be understandable and smooth with various levels of improvement up to only about 200 fps in extremely rare and specific cases.
Mind you this is based on testing that was done on crts. So led and other display techs vary to differing degrees. But everything and everyone kinda tops out around 100ish for any real benefits till you get into specific niche cases.
To actually give you a honest reply. 24 roughly.
Persistence of vision starts to kick in around 24 fps. The human eye then can tell difference up to a few hundred fps with reduced returns as you go up. Around 400-800 fps depending on age, gender and and a few other factors you lose the ability to tell detail, then color, then motion then anything but if light is on or off. Eventually at high enough fps you even lose that ability.
The US Air Force actually did lots of studies on this back in the day most are floating around.
The simple result was that 24-30 fps is 99.999% enough for anyone to have motion be understandable and smooth with various levels of improvement up to only about 200 fps in extremely rare and specific cases.
Mind you this is based on testing that was done on crts. So led and other display techs vary to differing degrees. But everything and everyone kinda tops out around 100ish for any real benefits till you get into specific niche cases.