I set G-SYNC for windowed and full screen.
The Acer Predator X34 monitor does 3440x1440 100Hz.
It can overclock to 120Hz but is not needed.
Elite Dangerous set to 100Hz refresh is a solid 99 FPS in Ultra mode.
I can run ED at 2560x1440 windowed with additional EDDB, Inara, Forum browser windows.
I also run ED full screen at 3440x1440 borderless using the keyboard Windows hotkey
to access the browser windows. Full screen shines running around in an SRV. No problems
running ED cruising to a station and watching an ED YouTube video.
X-Plane 11 (PC), No Man's Sky (PC) and X4 Foundations (Steam) also work great.
Related hardware specifications
Intel Core i7-3930K 3.20 GHz Six-Core
ASUS Rampage IV Extreme X79 LGA 2011 Motherboard
2 OCZ Solid 3 480GB Solid State Drives
3 Seagate ST4000DM004 4Tb hard drives
32GB Corsair Vengeance DDR3-1600MHz RAM
Corsair SP2500 Gaming High-power 2.1 PC Speaker System
Internet speed 227 down 22 up MBPS.
Of course none of this fixes Frontier server dropouts!
Enjoy