I'm positive that it has to do with coding of some type on SE's end. A 5970 is essentially two 5850's in CF. Thats why when you have two 5970's its Quadfire. In every other game, if I have AI disabled, I can notice a big hit in FPS. But for some reason in FFXIV its the opposite. Oh well. I'm sure that either SE or ATI will fix this in the next couple of months.
XI Wiki


