The 'slave' graphics card needed to be from the same family as the 'master'.ДЄn example of a limitation in regard to a Master-card configuration would be the first-generation CrossFire implementation in the Radeon X850 XT Master Card. ATI currently has not created the infrastructure to allow FireGL cards to be set up in a CrossFire configuration. Low-end Radeon x1300 and x1600 cards have no 'CrossFire Edition' but are enabled via software, with communication forwarded via the standard PCI Express slots on the motherboard. This dongle serves as the main link between both cards, sending incomplete images between them, and complete images to the monitor. The Master card shipped with a proprietary DVI Y-dongle, which plugged into the primary DVI ports on both cards, and into the monitor cable. One had to buy a Master card, and pair it with a regular card from the same series. 'Master' capability is a term used for 5 extra image compositing chips, which combine the output of both cards. Radeon x800s, x850s, x1800s and x1900s came in a regular edition, and a 'CrossFire Edition' which has 'master' capability built into the hardware. The system required a CrossFire-compliant motherboard with a pair of ATI Radeon PCI Express (PCIe) graphics cards. 1.2 Second-generation (Software CrossFire)Д¬onfigurations First-generation Д¬rossFire was first made available to the public on September 27, 2005.

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