Correction on what I said about the fps by the way, that number of 60 was a average of about 6-7 games, including slightly less demanding ones like Hitman and Civilization. Still not a bad numer, in the same graph the GTX 660 had about 36-37 fps average there, so going by those numbers the 960 will be about 65% faster. So yeah I guess it's probably gonna be similar to the 770 in terms of speed, and indeed it can't be much faster than a 770 or it will come too close to the high end cards such as 780 and also the 970. Anyay, I think it will cost more than the rumoured 200 then, around 230 I think (sadly, but we'll see).
And I agree, AMD has to do something fast, Nvidia is just filling market gaps now as they please, probably gonna release some 960 Ti soon to fill the 960 and 970... By this rate, if both companies take it so slowly, I'm predicting that in a few years Intel will suddenly make a faster integrated GPU than all Nvidia and AMD's dedicated ones, lol.