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Unfortunately, enabling G-Sync mode also brought with it some very bad gray scanlines on the entire screen. Very visible in most games with a bright background. This was seen when overclocked and running at the native 60Hz. Turning off G-Sync "fixed" it, but then what's the point of owning a G-sync monitor? There was some very noticeable Back Light Bleed in all four corners of monitor, quite visible on dark backgrounds. Some recent AAA games (Fallout 4 for example) still don't have proper support for the 21:9 aspect ratio, forcing you to find hack and mods to properly play games.
You got a link for that...there are a lot of 21:9 Gsync monitors.
I'm still sticking with the Ghot Budget Build...http://pcpartpicker.com/list/k6QRBP