I can get them for $90 each which one is better it seems the 850 has 16 pipelines but doesn't support shader 3.0 the 1600 has only 12 pipelines and does support shader 3.0..which one help?
Obviously it doesn't produce twice the framerates, I was simply saying that purely spec wise, the x850xt is almost twice as powerful. But we know from SLI and CF that having two, doesnt mean the framerates will be twice as good.