It seems that pure 2 x DVI dual head video cards are becoming rare. Most cards feature something like 1 x DVI plus 1 x HDMI plus 1 x VGA or some other interface. The idea seems to be that you can just use an HDMI <=> DVI adapter.

One result is that cards are seldom marked " 2 x DVI " anymore, but does this mean that they support simultaneous output on all interfaces? Are all cards dual head these days?

Take Asus's nVidia cards for example, they routinely have 1 x DVI plus 1 x HDMI instead of 2 x DVI, so my question is, are these equivalent to a dual head DVI card, or is there some detail required for dual monitor support?

I use dual-monitor stretched desktops for digital signage projects.