Because the 295x2 is two fucking GPUs. And the titan x is not mean to compete price/.performance, and neither was the 295x2, which launched at 1500$ Plus everyone forgets how fucking bad crossfire is. It's bad, I've hated every xfire setup I've ever had. It's not just eh AMD drivers, it's games not supporting it out of the box I'm tired of hearing this shit. The 295x2 smashed the titan z at half the price not the titan x.
Make correct comparisons people.