The Sapphire X1950 Pro Dual is one large video card. Nothing currently on the market comes close to it. The GeForce 8800GTX is 11" long by 5" wide (27.94 cm x 12.70 cm). The Sapphire X1950 Pro Dual dwarfs it at being over an inch bigger in both directions: 12 1/8" long by 6 1/2" wide (30.80 cm x 16.51 cm).
The card requires two 6-pin power connections just like the GeForce 8800GTX which can supply a maximum of 225 W. Although the coolers are roughly the same size, the all aluminum cooler on the Sapphire X1950 Pro Dual never gets a hot to the touch unlike the GeForce 8800s. It is both quiet and cool.