In comparison to previous CrossFire boards, ATI’s made no changes to the Radeon X1950 XTX CrossFire, the board relies on the same compositing engine first introduced with the Radeon X1800 XT CrossFire Edition and also uses the same dongle system ATI has used on previous CrossFire boards. In the case of the compositing engine, this is certainly a good thing, as the Xilinx FPGA at the heart of ATI’s compositing engine handles the blending used for CrossFire’s Super AA mode. With blending handled in hardware, enabling ATI’s Super AA modes with newer CrossFire cards comes at a significantly reduced performance hit.



Link: Firingsquad