So im planning to get a single 2560x1440 monitor and have it run on a gtx 970 (at 1440p, 60fps) but recently I watched a video about triple monitor gaming and it looks awwwwwsOME! How much will performance hinder on the gtx 970 if i decided to attach to more monitors and play with all at once and will i need to upgrade to a gtx 980/980 ti or even go SLI to maintain high settings at that resolution.