here is a recommended setting for battlefield 2, i assume you want something much better?
* 800 MHz or faster Intel Pentium III or AMD Athlon processor
* 256 MB or more RAM
* 16x or faster CD-ROM/DVD-ROM drive
* 1.2 GB free hard disk space plus space for saved games
* 64 MB or greater video card which supports Transform & Lighting
* Environmental Audio™ capable sound card