I'm getting ready to have a new pc built in a couple of weeks and may also get a new monitor. Right now I am running a GTX 680 with a 24 inch 1080P monitor. For the new machine I am going to get either a GTX 980 or a 980ti. If I decide to stay at 1080p, is there anything to be gained by getting the ti or is that more for 4K displays? If I do get a new monitor, should I go to a 4K. How much of a difference would it make? Trainz is the main purpose of the machine, I don't watch movie or dodo any type of photo or video work on it. I do play a few other games but not any of the shooter types, mostly things like Cities Skylines, Civ 5, that "other " train sim and a few other RTS games.