At the AMD Fusion Developer Summit (AFDS) 2012, the host unveiled its next flagship professional graphics card, the FirePro W9000. What makes the card particularly interesting is that it is dual-GPU, packing two Tahiti-derived GPUs, the same chips that go into making Radeon HD 7900 series. The FirePro W9000, is what many believe to be a professional variant of the Radeon HD 7990 "New Zealand" dual-GPU graphics card, which is facing delays for reasons unknown (actually, here's a
possible reason).
The W9000 packs a total of 6 GB of GDDR5 memory, up to 264.8 million pixels/s; 4 TFLOPs single-precision and 1 TFLOPs double-precision floating-point performance. The card design does away with lateral-flow cooler, and uses a triple-fan heatsink assembly that packs three 90 mm low-speed (low-noise) fans. A surprise here, is that the card draws power from [just] two 8-pin PCIe power connectors (it's probably using two
low-voltage Tahiti chips). It's an established fact that FirePro products are merely variations of Radeon products with possibly higher build quality, and an expanded software feature-set.
Source: 4Gamer.net