An option would be ok (but people might misuse it, maybe call it something other then vsync :p), turning it off can cause some sever problems in some games for example growlanser the game will run so fast the screen never updates unless you force it back to 60fps, but in my tests most games are ok with it off and run slightly better (not sure if its due to the cpu reduction or the increased virtual/fake frames available like gid said)
that said some games can actually benefit from it being off (besides for the less cpu usage)
Hatsune Miku
Unchained blades (game goes from 8 fps to 30fps) (normally very high cpu, vsync off cpu is mostly idle)
Code:
http://www.dailymotion.com/video/xura2m_untitled-29_videogamesthat said some games can actually benefit from it being off (besides for the less cpu usage)
Hatsune Miku
Unchained blades (game goes from 8 fps to 30fps) (normally very high cpu, vsync off cpu is mostly idle)
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