First, I have to say my first language isn't english, but i'm doing my best.
So here I am, about 1 or 2 weeks away from building my first gaming PC. I read a bit but i don't know a lot on computers. I'm building a PC on PCPartPicker mostly for fun and practice, but maybe it will become my first build. Like I said, I don't have a lot of experience in pc building so i'm deciding entirely with reviews and stats sheets, so i need advice on my video card!
I had r9 270x toxic for a week and evga 760 for a week and decided I'll go with gtx 770. From my experience gtx 760 gave me better performance in benchmarks on average 10% and in gamig I gained extra 10fps in bf3 and bf4 on ultra. So I'll pick 760. R9 runs little bit hotter than 760 with acx cooler. I hope my answer helps you.