The system requirements Gearbox Software's Aliens: Colonial Marines are out:

Minimum Specs:
Operating System: Windows XP SP3
Processor: 2 GHz Intel Dual Core Processor
RAM: 2GB RAM (XP), 2GB RAM (Vista)
HD: 20GB free hard disk space
Optical Drive: DVD
Sound Card: DirectX 9.0c compatible
Video Card: NVIDIA GeForce 8500/ATI Radeon HD 2600 (256 minimum)

Recommended Specs:
Operating System: Windows XP SP3/Vista/Windows 7
Processor: 2.3 GHz Intel Quad CoreProcessor
RAM: 2GB RAM. HD
20GB free hard disk space
Optical Drive: DVD
Sound Card: DirectX 9.0c compatible
Video Card: NVIDIA GeForce GTX560/ATI Radeon HD 5850 (512 minimum)

A one-time internet activation is required for Steam authentication.

Aliens: Colonial Marines is due out on February 12 for Xbox 360, PS3, PC, and Wii U.