Look at the minimum requirements the game needs compared to your machine. Pay special attention to the graphics card and the memory.
Intel CPU - Core 2 Duo E6700 2.66GHz
GD CPU hardware score: 4 Login to compare your CPU
AMD CPU - Athlon 64 X2 Dual Core 6000+
Nvidia GFX Card - GeForce 8800 GT
GD GFX hardware score: 6 Login to compare your GFX Card
ATI GFX Card - Radeon HD 3870
RAM (Memory) - 2 GB
Hard disk space - 8 GB
Direct X - 9 GB