Hi everyone! I'm planning on building a PC for Christmas, and I plan to use Nvidia. I've created a recent thread asking if I should go with a 5960x or a 4790k. Long story short I'm going to use the money to buy dual GPUS instead of a 5960x and go with a 4790k. I would like to know how much of a performance increase I will get with dual GTX 780 TI'S at 1080p. I know the 900 series is coming out on the 18th most likely but for now I just want to know about 780 ti's but I will definetly get the 900 series instead. Also I would like to know if I should get a Titan Black instead of two 780 Ti's for 1080p Thanks to all who help!