PC Perspective reports Dell and NVIDIA are presenting Quad SLI at CES 2006. NVIDIA specially developed a huge video card with TWO 7800 GTX 512 GPUs on it with two PCBs and 1GB of total memory.
What you are looking at is a picture of a slide of the new GeForce 7800 SLI. I was able to get some quick technical information on the new card and the technology behind it from NVIDIA just a couple hours ago. First, you'll notice there are two physical PCBs on this one, dual slot video card. Each PCB sports a single 7800 GTX 512 GPU and 512 MB of GDDR3 memory. The cards are longer to support the added logic involved in these cards and to allow the cooling device to be bigger as well.