This game is optimized really really, really badly. We will have to wait for patch, because now, game isn't worth playing, not to talk about buying.
PC Specs: Pentium 4 (s478) 3.00GHz HT (enabled) HP ch085 Motherboard 2.2GB DDR400 Ram HD 3850 AGP Video card 512MB VRam/256Bit 160GB Samsung Hard Drive... Windows 7
Here are the minimum specifications.
OS: Windows Vista / XP / 7 Processor: Intel Core 2 Duo E6600 or AMD Phenom X3 8750 or better Memory: 2GB HDD: 12GB Video: Shader 3.0 or better 256MB NVIDIA GeForce 8600GT / ATI Radeon X1950Pro or better Sound: DirectX 9.0c-compatible DirectX: 9.0c