Hi to all mates, i start to say to you sorry for my bad english. After many readings and searching in forums i discovered the major culprit of the stuttering. There is a problem an huge problem with games in full screen, i dunno if it's for refresh rate or Vsync but the clearly thing is in windowed mode the stuttering became to 0. I have experienced this problem with Amd/nvidia cards and drivers, so it's not about red or green. Games that have this problem: Star Wars Old Republic (tested with gtx 580, 680) Dota 2 (tested with hd7970 and gtx 680 lightningh) League of legends (tested with HD7970 and gtx 680) Diablo 3 (tested with HD7970 and gtx 670 msi power edition) Starcraft 2 (tested with HD7970 and gtx 670 msi power edition) Path of exile (tested with Hd7970 dual-x oc only) Sleeping Dogs (tested with Hd7970 dual-x oc only) Shadow Warrior( tested with HD7970) Bioshock Infinite(tested both with amd and Nvidia) Tf2 (tested with all my cards!) Now little proof that what i'm saing it's true: http://www.tomshardware.co.uk/forum/386194-33-certain-games-stuttering-drop-fullscreen http://www.neogaf.com/forum/showthread.php?t=437030 http://forums.guru3d.com/showthread.php?t=371550 http://forums.steampowered.com/forums/showthread.php?t=2804932 http://forums.sleepingdogs.net/viewtopic.php?f=5&t=1596 http://www.youtube.com/watch?v=0JZJgEmKlU0 http://www.bloodlinechampions.com/forum/viewtopic.php?f=116&t=14855 http://www.overclock.net/t/1405669/gtx-770-screen-stuttering-issues Now the question is, WHY noone can fix this? It's clearly a bug with screen resolution and refresh rate, so guys what do you think ?