Today SAPPHIRE announced their own GPU based on the Radeon HD 7990. The Radeon HD 7990 straps two Radeon HD 7970 GHz Editions onto a single PCB, providing a two-slot multi-GPU solution for enthusiasts with deep pockets.
As with previous generations’ XX90 cards, the Radeon HD 7990 doubles nearly everything about its component cards:
The default clock is actually 950MHz, but when additional thermal and power room is available the GPU can automatically ramp its clock speeds up to 1GHz. The power limit for the card should be 375 watts—two eight-pin PCIe power connectors each providing up to 150W, while the PCIe 3.0 x16 slot provides an additional 75W. SAPPHIRE recommends a minimum 750W power supply for one card and a 1000W power supply for dual cards.
Oh, and for the enthusiast with especially deep pockets, a single CrossFire connector allows for some really expensive gaming.
Despite the card’s power draw, the SAPPHIRE card should stay nice and quiet during heavy duty gaming thanks to its triple fan system. If it works as well as the company’s other cards with similar heatsink designs, the noise levels will be quite acceptable.
Display outputs consist of a single DVI port and four Mini DisplayPorts. As usual, two non-DisplayPort displays can be used without adapters, but anything else will require an active DisplayPort adapter. SAPPHIRE includes a DVI->VGA adapter, mDP->DP cable, mDP->DVI cable, and a DVI->HDMI cable.
Pricing and actual street dates should be announced soon. Given the pricing of current models, $899-999 seems a reasonable guess.