IIIIITHE1IIIII on 19 February 2016
The difference between 30 and 60 fps is massive. Anyone claiming not to be able to tell the difference is simply uneducated or mislead by hardware failing to display 60 fps properly (which still falls under "uneducated").
It is true, however, that 60 fps is a lot less important in slower-paced games like Shadow of Mordor, whereas racing and fighting games more or less require it.
