Hello. I am upgrading my desktop components, and right now I have the ASUS GeForce GTX 760 DCII OC Edition. And I want to improve my performance. So, I am buying an ASUS Maximus VI Hero for 2-way SLI and a good PSU for SLI. So I am ready for SLI and power consumption isn't a problem for me. 2 GTX 760 in SLI show better results than 780, but 780's price was dropped recently. So, another 760 or a GTX 780? I may be thinking of buying another gtx 780 for sli.