- (just my opinion): leave the Titans alone, they're just name and mainly for computing, not for gaming
- i've bought and i'm running one ASUS ROG MATRIX GTX 780Ti Platinum and I get better results in gaming (+10%) over Titan Black ... 2nd one Matrix will be in SLI in abt two month (since I have small sallary) ... and i'm gaming on ASUS PB278Q @ 1440p since november last year ... first i had 2x ASUS GTX 770 DC2OC and now i've switched myself on Matrix 780Ti (much better with one, i can only imagine what will i get with 2 Matrix cards)
- and main point, Titans are reference cards which means they have stock cooler, now think how much heat there is comparing to DC2OC ASUS coolers, or EVGA ACX, or Gigabyte Windforce etc., especially in 2-way SLI or 3-way SLI ... only thing is, if you'll remove stock coolers and put custom water cooling, then you'll get something, but again, with 780Ti you have much more Shaders and much bigger clocks out of the factory
- i'm repeating this is just my opinion and my choice ... sum all choices out there, put them on weight and than decide ... good luck in any case