Originally Posted by
oliveira
It's as I said. The game is for DirectX8.1
On nvidia case any GPU on the "TESLA" (GTxxx) range or older is going to work good with FFXI. Fermi GPUs is where it started to go downhill for FFXI with nvidia.
Keep in mind that this regards the actual chip hardware, not the drivers as these will change their behavior completely based on the graphics card you have installed on the system.
It should make no difference if you have something like a 9x00 series Geforce (Which are TESLA core based) and the current driver or something older like a 7x00 series Geforce with the same driver as both cards will deal with DirectX8 directives in hardware.
A Fermi (GF100), Kepler (GK100) or anything newer than thay will leave you with poor FFXI performance regardless of the driver version you have.