Also to crossfire... AMD just recently game out with the long awaited Frame Pacing driver to fix crossfire, have you updated your drivers in the last 30 days?

Furtherfore, dollar for dollar, ffxiv runs better on nvidia cards than it does on amd cards. A 760GTX for 250$ will run the game better than a $300 amd card. Just look for all the benchmarks, I was in the benchmark thread back in beta, and I noticed that every amd I could find was getting beat by it's equivalent nvidia card. I don't know why but I think it's because nvidia cards have phsx processors and take some load off the CPU.