Requirements

Recommended:

Intel Core i7 920 Nehalem 2.66GHz Quad-Core Processor
ASUS Rampage II GENE LGA 1366 Intel X58 Micro ATX Motherboard
Crucial 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1066 Memory
OCZ ModXStream Pro OCZ700MXSP 700W Modular Power Supply
Western Digital Caviar WD1001FALS 1TB 7200 RPM SATA Hard Drive
EVGA 896-P3-1257-AR GeForce GTX 260 Core 216 896MB Video Card
Windows XP SP2
DirectX 9
1024 x 768 / 32-bit color

Minimum (version 1):

Pentium III 833MHz
256MB RAM
Windows 2000 SP4
DirectX 8.1
640 x 480 / 16-bit color