It cannot be said that the idea of association in one system of four video chips ATI was new - in their time the specialized products evans&Sutherland used this system before the announcement of technology crossfire. Recently the possibility of official announcement for crossfire version with support of four video chips began to be more actively discussed . The companies asus and Sapphire released two-chip video card radeon x1950 pro, chipsets AMD RD790 prepares to place more video card in one system.
Finally, recently with the acquaintance to the sequential drivers for video card ATI were discovered the references about video chip r600, RV630 and RV610 and maximum quantity of devices, which was equal to four. I please to note that this parameter was equal to four not only for the solutions on the base Of r600, but also for the products on base of chips RV630 and RV610.
Today associates confirmed that the video chip r600 will not only be able but also it will support the combination Of crossfire made from four video chips . From the side of energy consumption this could be pretty serious; however, similar combinations of video card on the base of 65 NM video chip series rV6xx can correct situation. In any case, demand for such quad video card will be completely limited, since even crossfire enjoys smaller popularity than SLI.