Getting tired of using a single 22" (1680x1050 res) for flight sims, mainly DCS and IL2-BOS. I am interested in two things: 1, upgrading to a single 2k monitor, 2 what do I need to upgrade to run such monitor. Was wanting to get at least a 27" 1440p 144hz monitor, but looking into things turns out they have curved ultrawide monitors now and G-sync is interesting to me. I don't live in a city that has a computer store to see these things. Largest size I could fit on desk would be a 34" monitor, but would have to have speakers at weird angles to do so, a 27" would fit nicely without having to put speakers off weird. While I don't need to play on ultra I would like to play on high settings. Looking into things seems like i might need to at least upgrade video card, was thinking getting a GTX 1070 could run a single 2K monitor.
Currently I have i5-4690k at stock 3.5 ghz, ASUS Z97-A, 32 Gb ram, EVGA GTX 770 dual super-clocked 4GB, with both games installed on OS SSD.
What do you guys think 27" or 34"? What will i need for other upgrades to run?