Nishant0462 :
Of course gtx and evga and gtx has a perfect combo.
As you would have seen in many reviews that nvidia is always better that amd.
So........ go for nvidia in my opinion
That doesn't make any sense. If we're talking about 1440p, no way the GTX 970 is better than R9 390, be carefull doing such affirmations.
OP: Depends your system. Which is your current PSU, and which is your resolution to play?