Alienware announces VideoArray dual graphics tech

I think I'll let the press release explain this one:
MIAMI, May 12 /PRNewswire/ -- Alienware, the leading manufacturer of high- performance desktop computers, notebooks, and professional systems unveiled today at the Electronic Entertainment Expo, Video Array and X2 -- an exclusive, patent-pending technology designed to significantly enhance the performance of graphics intensive applications including extreme gaming, professional design and engineering, real-time rendering and animation, and flight training and simulation modules.

Video Array is an accelerated graphics processing subsystem that will allow users to add multiple, off-the-shelf video cards to their Alienware computer systems and have both cards process graphic commands in parallel. Understanding the wide-ranging wants and needs of its customers, Alienware designed its solution so that it is not tied to any one specific video card. This design will allow users to take full advantage of the fastest video card on the market for a significant performance increase.

Alienware's exclusive Video Array combined with X2, an Alienware-designed motherboard which is currently based on Intel Corporation's next-generation chipset and will include dual PCI-Express high performance graphics card slots, will deliver significant performance gains over current graphic solutions. The new Video Array Technology and X2 motherboard will enable users to run graphics intensive applications flawlessly at maximized settings, render 3D visuals in record time, and much more.

Nifty. I'd hoped to see this kind of thing happen with PCI Express. I wonder how they plan to make it work with various video cards. Perhaps the graphics companies have already pledged to include multi-card support in their drivers. If so, though, why does Alienware have a patent pending?
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