Your eyes can’t possibly tell the difference. We’re past the max eye resolution at this point.
I imagine it was a typo*, but this article in Nature reports that in specifics circumstances the median maximum that people can perceive a difference may be around 500hz, with the maximum in their test possibly being as high as 800hz.
Normally though it seems closer to 50-90hz, but I’m on the road and haven’t delved too deeply into it
Edit: Type to Typo