Does x16 make a difference compared to x8 with two of these cards? My motherboard, M4A79T Deluxe, has four PCI-E slots, but the two x16 ones are too far apart to reach with the crossfire bridge. I even have one of the longer cables.
My CPU is an AMD Phenom II X4 955 and my maximum resolution is 1680x1050. I play a variety of new and older games but nothing as demanding as Crysis. Fallout 3 is likely the heaviest at the moment.
So for some reason only one of these cards is being detected according to both CCC and GPU-Z. They both have additional power from the PSU, are connected with two crossfire bridges and catalyst 9.6 has been uninstalled and reinstalled since then. However, when I enter Windows (XP) I am told new hardware has been found which I assume is the second card. What is wrong here and what do I do?
Answer to his original question was already taken care of red
Also, crossfire provides about the same scaling throughout the lineup. It is not as good with a third and fourth GPU though. But, the thing that changes is the bang for your buck obviously goes down the higher end you go, double that and many would have a hard time justifying it.