Thread: 800x480 60HZ vs 800x480 61HZ?

is there really a difference between the two resolutions of 800x480 at 60HZ and 800x480@61HZ?

I have used powerstrip on my xenarc screen and gotton it to detect it at 800x480 @ 60HZ with the settings perscribed by the xenarc FAQ site. but according to that FAQ it says it should detect as 800x480 @61HZ, however i only get 60Hz