The official minimum recommended configuration:
Processor: Intel Pentium 4 ® 1.8 GHz or equivalent configuration
Graphics: 64 MB NVIDIA GeForce ® 3 (or NVIDIA GeForce ® FX 5200) or ATI ® Radeon ® 8500 (or ATI ® Radeon ® 9550)
Memory: 512 MB
Hard drive space: there is space available 7GB
DirectX: DirectX 9.0c
Operating System: Windows ® XP
Network Connection: 56kbps modem
CD-ROM: 2x DVD drive
Official recommended configuration
Processor: Intel Pentium 4 ® 2.8 GHz or equivalent configuration
Graphics: 128 MB NVIDIA GeForce ® FX 6800 or ATI ® Radeon ® X850
Memory: 1 GB
Hard drive space: there is 10GB free space
DirectX: DirectX 9.0c
Operating System: Windows ® XP / Vista
Network connection: broadband DSL / Cable
CD-ROM: 2x DVD drive