If the refresh rate of a monitor is maxed at 60hz, is it pointless to have the frame rate of a game any faster than that? I.e. - you won't gain any additional benefit?
Beyond pointless.
You've two scenarios -
1) ...your monitor is purposefully undefined outside of any known
limits in a theoretical game called the Outer Limits, thereupon
causing it to explode in your face with billowing smoke when the game
is set way, way beyond anything actual, and you die spectacularly for
having lost the game.
2)...your monitor is defined, according to specifications, constrained
for the game that then refuses to play because the OS intercepts to
tell you, in its thoughtful way, your program is attempting standards
way, way beyond anything than piss-poor monitors and an entry 60Hz
refresh rate is capable.
That's one way, either way for you to get to choose to lose.
When I last got to play that game it was with an advanced EGA monitor
that had added but undefined specifications at 800x600, as VGA was not
fully implemented widely across the industry, a monitor I believe as
well being marketed in a cross-platform for MAC/APPLE arrangements.
What I did was to smoke it at 800x600 on my PC, literally, with an
advanced ATI videoboard -- for a gaming feat least appreciated by one
of the national computer stores that subsequently refunded a
substantial purchase price. The name of the game is Fun Cheating Fly-
Back Voltages When You Can't Smoke Thin Film Transistors.