Minimum System Requirements:
Dual core CPU (any Core 2 Duo or better will do)
DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220 and above)
1GB RAM
Recommended System Requirements:
Any Quad Core or 3.0+ GHz Dual Core CPU
DirectX 10 compliant graphics card (GeForce GTX 260 and above)
2GB RAM
Optimum System Requirements:
Core i7 CPU
NVIDIA DirectX 11 compliant graphics card (GeForce GTX 480 and 470)
As much RAM as possible (8GB+)
Fast HDD or SSD
http://ve3d.ign.com/articles/news/53357/Metro-2033-PC-System-Requirements-Revealed
Dual core CPU (any Core 2 Duo or better will do)
DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220 and above)
1GB RAM
Recommended System Requirements:
Any Quad Core or 3.0+ GHz Dual Core CPU
DirectX 10 compliant graphics card (GeForce GTX 260 and above)
2GB RAM
Optimum System Requirements:
Core i7 CPU
NVIDIA DirectX 11 compliant graphics card (GeForce GTX 480 and 470)
As much RAM as possible (8GB+)
Fast HDD or SSD
http://ve3d.ign.com/articles/news/53357/Metro-2033-PC-System-Requirements-Revealed