Is it worth the upgrade?

Tiburonjack

Honorable
Sep 28, 2013
28
0
10,530
Hey!
Back 1 year ago, I bought a custom built gaming rig with two EVGA 770s with ACX coolers. They are the 4GB model, and they are not super clocked. I am currently gaming on a 2560x1440p monitor: http://www.amazon.com/PB278Q-27-Inch-LED-lit-Professional-Graphics/dp/B009C3M7H0/ref=sr_1_1?ie=UTF8&qid=1411664146&sr=8-1&keywords=asus+monitor+2560x1440

I am wondering if I should upgrade my two 770's to 2 EVGA 980s, and I want to see if it is going to be worth all the money. I also am wondering how much money I could sell my old 770s for, assuming I am going to get the 980s. I really want to know if I will get a huge difference, or if it will be a 20 frame increase. Also, is there a single gpu that could outperform 2 980s?

Thanks!