Minimum Microsoft Windows XP Home/Pro, 1.7 GHz Intel Pentium 4 or 100% compatible Processor, 512 MB RAM, 2.5 GB free space, DirectX 9 compatible graphics card with 128 MB memory, DirectX 9 compatible Sound Card, Keyboard and Mouse, DirectX Version 9 Recommended3 GHz Intel Pentium IV or 100% compatible Processor, 1 GB RAM, DirectX 9 compatible graphics card with 256 MB memory, DirectX 9 compatible force feedback steering wheel Graphic Cards not supported: NVIDIA GeForce 3/4 cards ATI Radeon 8500/9000/9200 Intel Motherboard mounted chipsets