The level of biased claims in this thread and fanboyism is ridiculous...I'm gonna have to side with Alatar and I know it first hand (like any other Kepler user, or Titan) that stock boost on paper does NEVER reflect the boost you see in gpu-z or precision-x while using the card. It's normally a lot higher than that.
Also, I would have rather seen the guy test these on a test bench or even a cardboard box to hold the mobo in place with a fan or two moving air accross the board, and post REAL stock results and not ones where it seems he manipulated them on purpose cause of his bias or sheer stupidity.
I'm a bencher, and I go for whatever's faster single gpu wise, I could never afford a newer card currently but I'd get a single Titan if I could. For a gaming machine at 1080p I'd go with bang/buck of course (think single 7870 XT
I can't understand how you guys can't see the bias in this review, it just doesn't make sense at all. His testing methodology is definitely flawed. A proper review would have been:
-Run both cards at stock, compare results without further manipulation and using the latest drivers.
-Overclock both set of cards to the max stable clocks and post results (a few games, and a few synthetic benchmarks for good measure)
-Publish a graph comparing that to older results if possible, showcasing different 7970 variants, as well as 680s and whatnot.