The 970s in SLI would be the better choice. For a bit more you get fantastic performance and great scaling. You will not be disappointed, here are some benchmarks: http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_970_SLI/20.html
Outlander_04 :
IMO ditch the 3d monitor , buy an ASUS 28 inch 4K conventional monitor and feed it using GTX 970 SLI
Its bound to be a better experience
@mangodrinker. wow it's amazing bro. thanks a lot.