Alienware's Video Array

Alienware makes their big E3 announcements; X2, an upcoming PCI-Express motherboard, and Video Array, a way of using multiple video cards in parallel, saying: "The Alienware Video Array and X2 motherboard will debut in Q3/Q4, exclusively through Alienware’s new ALX brand, a family of extreme performance systems catering to the demands of the most hardcore PC enthusiasts. ALX systems will be sold only in the United States, directly through www.alienware.com/alx or 1-800-ALIENWARE." There's a Q&A on the announcement on HomeLAN Fed, and here's more:
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.
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Old Voodoo = SLI
May 12, 2004, 15:11
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Old Voodoo = SLI May 12, 2004, 15:11
May 12, 2004, 15:11
 
I believe the old Voodoo technique was called Scan Line Interleaving. One card handled the even lines, the other the odd.

As far as it being prohibitively expensive, that might not be the case. If you could hook up two relatively-cheap 9600 Radeons (~$120/piece) and get better performance than a 9800 XT (~$300?), it might make sense.

Of course, their relianc on PCI-Express means most of the currently cheap video cards aren't an option...

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