The Japanese branch of Square Enix has revealed the system requirements for the alpha version ofFinal Fantasy XIV Online on the PC. You can view the details below:
Operating System
Windows XP SP3
Windows Vista?32-bit / 64-bit SP2
Windows 7?32-bit / 64-bit
CPU
Intel Core 2 Duo (2.4 GHz)
AMD Athlon X2 (2.4 GHz)
RAM
Windows XP: 1.5GB
Windows Vista / Windows 7: 2GB
Hard Disk Space
10 GB for installing
10 GB on drive containing the My Documents folder for downloading
Graphics
NVIDIA® GeForce 8800 or higher VRAM 512 MB
Radeon HD 2900 or higher VRAM 512 MB
Sound
DirectSound compatible (DirectX 9.0)
Internet
Constant broadband connection
Monitor Resolution
1280 x 720 (32 bit color)
DirectX
DirectX 9.0c
Other
Mouse
Keyboard
Gamepad
The system requirements are subject to change in the beta and/or final version of the game. Final Fantasy XIV Online will be released for the PC and Playstation 3 later this year.
http://www.examiner.com/examiner/x-6894-Video-Game-News-Examiner~y2010m3d20-Final-Fantasy-XIV-Online-alpha-system-requirements