There are various methods available for cooling a graphic processor. Some vendors go to the extreme with using water. On this note, Sapphire has a water-cooled 3870 x2 available. The unit we received from Sapphire does the job without the aid of water or fans. The Ultimate uses an impressive passive cooler to cover the RV670 GPU chipset.
The heat pipes take the heat and moves it to the rear of the card. The heat escapes into the open area that occupies the under regions of the case. In some cases there is usually a fan blowing in this area that would definitely aid in heat dissipation. Regardless of fans or open air this setup is great for anyone looking for silence.
The GPU and ram chips are covered by a single aluminum plate. With the way this cooler is designed, it is similar to CPU coolers where the base of the cooler is not directly attached to the fins, but raised high to dissipate heat.
The back of the card has two Dual-Link DVI and a single S-Video connection, and from the looks of the rear I/O plate you would think this is a single slots card. Which is to a point as the larger side of the heat sink would be towards the CPU socket leaving you able to use the next slot below.