Just google your GPU (hd 7770) + gta 4, or hd 7770 + Far cry 4. Should show about how well your gpu should do in the games. -Linx :)
Otherwise both should run fine, but for future reference do what I said. :P
Not worth. Check price on GTX 760 if its good, sell and upgrade, if not just wait. Also no need to unless you play on a high res ( > 1080p) GTX 760 should be fine right now. Wait until your 760 isn't enough to run your games anymore.
Should I get 660 SLI (I already have 1 GTX 660) or go with GTX 950?
Mobo: GIGABYTE GA-Z97X-Gaming 3
Psu: Antec HCG M Series HCG-620M
CPU: i5 4690k
I play COD AW, going to be playing BO3, Fallout 4, and I play CS GO. In 1080p
I would just plainly say build a new one if you have the money but if you don't just update your GPU. I could make you a budget build if you would like just pm me :P
Same one I have hahaha. How much money are you willing to spend? I suggest a GTX 750.
Link: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487026&cm_re=GTX_750-_-14-487-026-_-Product