The latest Intel graphics drivers does not provide an option to turn off Vertical Sync, you will need to take a look within your game options or programs settings for a place to disable such feature.
source: Not able to turn off vsync
Thank you but I actually want to turn it on not off in Fallout 1 Hi res patch on 1920*1080.
Sorry for confusion.
Here is another description. If i understand that correctly, VSync should be on by default, i.e. if you do nothing.
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.
source: INTEL HOW TO TURN VSYNC OFF?
Otherwise try to toggle between app and driver settings in the 3D tab of the control panel.
The problem is that in 3d options you can change only application control or set it on only if you choose a game but the problem is that intel 3d pannel doesnt see the launcher or other 2 icons for launch as 3d games and thats why I cannot set vsync in Fallout 1. In nvidia you could set for all 3d aplications to be launched with vertical sync. Here you must choose a game launcher then set vsync in 3d pannel. Thats the problem I remmember that for radeon was a riva tunner and for nvidia there was nvidia inspector these where another tools for optimizing 3d settins for those video cards is there something else which I could youse for intel hd card, another 3d tool to optimize 3d graphics (sorry for bad english Im from Ukraine, my pc went down a week ago and pluged my mother notebook to my tv so that i could watch movies and play games).
I looked around and found this 3rd party tool you can try:
Actually it's a DirectX proxy DLL; copy it into game's folder, but never into Windows folder