With the new Intel® HD Graphics family controllers and its new video driver user interface, you need to go to the "3D options" menu and you will see the option to disable Vertical Sync, the two options available are "On" which will make this setting available all the time, and "application settings" which will run vsync only depending on the policy established by the game or application that you are using, in other words it will depend on the application or game if it has the option to disable it or not use it.
there is no "Off" option for vsync in 3D options of intel graphics. We want to force this and not to leave it on application.
There are so many threads trying to resolve this BUG with intel graphics.
We are really patient about this for a long long time.
Please do something about it.