Colorful C.945PL User Manual page 2

ATI CrossFire Technology Introduction
ATI released today its new technology that allows two video cards to be
connected together in parallel in order to increase the system gaming performance –
theoretically this technology can double it, called Crossfire. When two ATI cards are
linked up, they are capable of using three different methods to split the rendering load
between them—super tiling, scissor, and alternate frame rendering. Super tiling is
supported only in Direct3D applications; it divides up the display into 32x32 pixel
squares, like a chess board, where each card renders alternate tiles. Both Direct3D and
OpenGL applications can benefit from scissor mode, where the screen is split in half
horizontally, with one card rendering the top half while the other does the bottom half.
Finally, Alternate frame rendering mode does just what it sounds like: The two cards
take turns rendering frames.
Crossfire allows you to use different video cards which stay on the same family
together. The only requirement is that one of the cards must be "Crossfire Edition",
the other card can be an early model, but if their memory is not the same, system will
recognize GDDR of the small one as default. ATI suggest users use the same model.
NOTE: When you make a Crossfire system, we suggest you using a driver newer than
Catalyst® driver 5.12.