Well, it depends on who you talk to.
http://www.newton.dep.anl.gov/askasc...1/gen01025.htm
http://rad.usuhs.edu/medpix/master.p...rchstr=&search=
Let me rephrase what I said. Over 25 or 30 frames per second, the frames are considered by the human eye to be motion rather than seperate frames. Personally, I can't tell the difference in this game or any other over about 30 and that's all that matters. The human eye may process an infinite number of frames per second, but after about 30 "it just doesn't matter".