2. What graphics cards work with CrossFire?
A complete CrossFire system requires a CrossFire Ready motherboard, a CrossFire Edition graphics card and a compatible standard Radeon (CrossFire Ready) graphics card from the same series, or two CrossFire Ready cards if they are software enabled. This applies to cards from ATI or any of its partners.
Card One --------------------------------------------------------------- Card Two
Radeon X1900 Series ------------------------------------------------Radeon X1900 CrossFire Edition
Radeon X1800 Series ------------------------------------------------Radeon X1800 CrossFire Edition
Radeon X1600 Series ------------------------------------------------Radeon X1600 Series
Radeon X1300 Series ------------------------------------------------Radeon X1300 Series
Radeon X850 Series -------------------------------------------------Radeon X850 CrossFire Edition
Radeon X800, PRO, XL, GTO, XT or XT Platinum Edition ----------------Radeon X800 CrossFire Edition