The Inq learned about a new beast from ATI, the Radeon X2800XTX2. This card is similar to NVIDIA's GX2, it features two Radeon X2800 GPUs.
We don't know how DAAMIT plans to implement this, as we may be talking about two PCBs or maybe just one. Nvidia went for two PCBs last year with its Geforce 7950GX2 and our money is on ATI following a similar route.
We also have the rest of the specs, although final clocks may still change slightly. Both chips should end up clocked at 575MHz core and 2000MHz GDDR4 memory. This version has the 256-bit memory controller probably because of technical difficulties to make two chips work at 512-bit memory controller speed. The card is equipped with 2x512MB memory, a total of 1GB, and has two times 96-Shader units. It is made using a 80 nanometre process.
The price of this card will be $599 and you'll be able to use it for a Quad CrossFire system. However, NVIDIA is also working on a dual-GeForce 8800 card to compete with ATI.