This graphics card packs a Bigfoot Killer NIC on-board, so graphics and network processing is packaged into a single addon card. From what we can tell, the card is designed using a PCI-Express bridge which is connected to the PCI-Express x16 interface, which gives the Radeon HD 5770 GPU an x16 link and the Killer SoC an x1 link. The Killer network processor has its own dedicated memory and ROM, with which the SoC can offload network processing from Windows, in a bid to reduce latencies, even if improving performance is inconsequential with today's systems with powerful processors.
Next up, is the PowerColor HD 5770 Evolution. Again, another novelty graphics card based on the Radeon HD 5770. This one packs a Lucid Hydra Engine chip on-board, which allows it work in tandem with any other graphics card, ATI or NVIDIA, with 2-way or 3-way multi-GPU support.
Source: TPU