XFX has made a custom AMD Radeon HD 7990 that is actually based on the official Malta PCB from AMD. What makes it different is that it doesn't follow reference specifications for the cooler, which takes up three expansion slots and carries three fans.
The card runs at reference frequencies with the GPUs running at 950 MHz base and 1000 MHz boost. Memory runs at an effective speed of 6.0 GHz over two 384-bit memory interfaces. Each GPU can address 3 GB of memory, resulting in a total of 6 GB.Image Source: InpaiImage Source: Inpai
XFX's triple slot "Triple Dissipation" cooler is built using two large aluminum fin stacks, eight thick copper heat pipes, and three 90 mm fans. With regard to aesthetics, it follows the same principal design as other cards from XFX.
There was no indication of when the card would be released, nor was there any information on pricing, though based on the cost of previous custom Radeon HD 7990 cards, we can expect the card to be priced around $800.