Quoting myself from my Previous Post
I agree though Oni, that you should have better FPS than you are stating, unless you have a gimped card. Try using AMD Overdrive to set your Graphical Settings for AA etc. Click the box so it doesn't use aplication settings. If you have an older MOBO, check to see if you have the latest BIOS for it. I believe the most current AMD drivers for the HD cards is 11.4 too. What is your score running the Benchmark? It'd be nice to know if your CPU or Data Corruption is bottlenecking the 6990/6970the 6970 will run FFXIV better even though the 6990 is two 6970 GPU's. The reason is because FFXIV will only use 1 GPU from the 6990, causing it to be overworked on that single GPU.
My Rig: Phenom x4 965 O.C. @ 3.8, Formula IV Mobo, Radeon 5770 Stock, Corsair Dominator CL9 1333Mhz 4 Gig Ram
Settings: 1080p Resolution on 22.5" Monitor (Windowed)
General Drawing Highest (10), Background Standard(3). Shadows Standard.
Texture Quality High
Texture Filtering High
No DOF, NO AO
All my other Graphical Settings are set through AMD Overdrive.
Gaming Performance
Standard 3D Settings (Custom)
Mipmapping (Quality)
Image Quality
Anti-Aliasing - Morphological Filtering 8X Wide-Tent Samples 16X
Anti-Aliasing Mode - Super-Sample AA
Anisotropic Filtering 16X
With this I have smooth Gameplay 45-50 FPS