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Although the technology for uniting multiple Radeon cards into one graphics subsystem has been around for quite a while already, under the names of CrossFire and, later, CrossFireX, such configurations are still considered a luxury. You can find one in a system of a wealthy gamer or hardware enthusiast. Besides the need to pay for two rather than one graphics card, the popularity of CrossFireX is restrained by its persistent problems. CrossFireX does not work on some game engines and the AFR rendering mode does not always ensure comfortable gameplay.

Anyway, this won’t prevent me from checking out the performance benefits you can get by joining two Radeon HD 58xx series cards into a single graphics subsystem. I will also compare them with dual-processor graphics cards and tandems and will perform some power consumption measurements as well. First, I will give you a brief description of two graphics cards from HIS.

http://www.xbitlabs.com/articles/vid...rossfirex.html

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