TweakTown reports Sapphire is working on the Atomic HD7990 6GB, a new card with two Tahiti XT2 GPUs, 6GB GDDR5 memory and six Mini-DisplayPort outputs. The card requires three 8-pin PCIe power connectors and ships with a water cooling to ensure cool operation. Clockspeeds are yet to be disclosed.
Three 8-pin PCIe power connectors, yes, three! Sapphire have gone as far as offering water cooling with the Atomic HD7990 6GB, and it's quite the setup. We have a full copper water block, front 5.25-inch reservoir with one pump pre-installed with the option of upgrading to a dual pump, a 240mm radiator, and 2 x 120mm fans to keep it all going. Some full specs are below: