If the GK104 were that fast, it would be faster than a pair of HD7970's in battlefield 3(look at the results i posted in the previous page), never mind releasing higher end versions like the GK110 or GK112....Aka too good to be true.
Here's the chart again:
Since the HD6970 trades blows with the GTX570 and the former does 22 Fps at 2560*1200, and the GK104 is meant to replace the GTX570, it would score 69 Fps, and the replacement for the GTX580 would score 85 Fps, easily beating a dual HD7970 setup that's packing 550 GB/sec of memory bandwith at stock clocks and an insane amount of fillrate and only 8.6 billion transistors between both GPU's.
Single GPU card beating a dual GPU setup in a game that scales extremely well in dual GPU....It's never happened in the past, so why should it happen now?
That chart seems to be someone's wet dream and nothing else....