Hi, I just built a machine and I'm thinking about trying out two video cards for the first time. I bought Newegg.com - XFX HD-585A-ZNDC Radeon HD 5850 (Cypress Pro) XXX Edition 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card but I've been unable to find that exact card again. I am just curious if anyone knows whether or not using XFX Radeon HD 5850 Video Card - 1GB GDDR5, PCI-Express 2.0, CrossFireX Ready, Dual DVI, Display Port, HDMI at TigerDirect.com would work under Crossfire. What exactly are the rules dictating Crossfire? Do the cards just have to share the same GPU? Or does it also apply to manufacturer, or are there further requirements?
This is an rather old article but it explains thins good enough. But you should also see the latest info on the CrossfireX technology which is quite a leap in the ATI Crossfire tech line. Some fundamental things have changed, so you have to know which tech you are gonna be using.