Thanks guys.
Made a quick run with Crysis 3 1080p, switching 8x MSAA to FXAA (with everything else maxxed out) and went from 37 FPS to 68 FPS. Truth be told, I'm not a serious gamer and couldn't much tell the difference.
Now, when running 5760x1080, making that same single change did not make that kind of difference. Maybe 2FPS.
EDIT - Pre-order on Newegg: ASUS -
http://www.newegg.com/Product/Produc...82E16814121724 . EVGA isn't up on the egg yet. You used to be able to pre-order on EVGA's site, but it looks like they're out of pre-orders.