Palit Revolution R700 Deluxe
 

For those who missed it, the HD4870 X2 is essentially two HD4870s
operating in Crossfire mode, albeit on a single card. And as if the
original wasn't already huge enough, Palit has super-sized the HD4870 x2.
What it calls the Revolution R700 Deluxe takes up a grand total of 3
slots.

http://www.vr-zone.com/articles/pali...luxe/6223.html