I have a problem with R9 380, Vsync and multiple monitors. For some reason Vsync limits max framerates to 30 fps on ALL games when playing on fullscreen mode and screens set to duplicate mode. If I play on windowed mode, disconnect the other screens or just set them to extend mode or disable Vsync I'll get 60 fps. With otherwise the same setup but GTX 560 Ti, Vsync work correctly. I'm using the latest drivers (16.15.2211) and all screen are set to 60 Hz in Windows 10 setting.