[Chevalr1c]

Originally Posted by p_o_s_pc

which ATI cards can be used for WCG(such as is it only the 7k series that can be used?)

Originally Posted by Jstn7477

5xxx-7xxx series, though the extremely low end cards are not supported because they are too slow. The 7xxx cards reap the most benefits, though.

I use a HD 6670 and it crunches just fine. Slower than the 77xx but still decent enough (keeps up with the GTX 560/570).