Minimum Requirements
Operating System: Windows® XP SP3/ Windows® Vista SP2/ Windows® 7
Processor: Dual Core CPU
Memory: 2GB RAM
Hard Disk Space: 8 GB Free
DVD-ROM Drive: Required for disc-based installation
Video: 256 MB ATI HD2600 XT or better, 256 MB nVidia 7900 GS or better, or Core i3 or better integrated graphics
Sound: DirectX 9.0c-compatible sound card
DirectX®: DirectX® version 9.0c
Recommended Requirements
Operating System: Windows® Vista SP2/ Windows® 7
Processor: 1.8 GHz Quad Core CPU
Memory: 4 GB RAM
Hard Disk Space: 8 GB Free
DVD-ROM Drive: Required for disc-based installation
Video: 512 MB ATI 4800 series or better, 512 MB nVidia 9800 series or better
Sound: DirectX 9.0c-compatible sound card
DirectX®: DirectX® version 11
As of me.. I ran with everything set to max with a q8200,HD4890,4gb ram. And i get lag when i zoom out to complete world and pan. when i zoom in, it played really smooth.