Need profile AMD Radeon™ HD 7970 too much tearing in graphics

[Laraul]

Run the game in Windowed mode with Aero enabled and you'll always get vertical sync. Download something like this to remove the borders when running the game while in windowed mode.

The game lacks vertical sync support. And without it unless the catalyst software has been updated to be aware when the FFXIV game executable is running you will not get vertical sync while in full screen mode. And it's unlikely AMD will include support for FFXIV anytime soon.