http://gameinfocenter.com/pc-games/system-requirements/Alan-Wake.html
Minimum system requirements
OS: Windows XP, Windows Vista or Windows 7
PROCESSOR: A dual core processor is required:
AMD: Athlon X2 2.8GHz
Intel: Core 2 Duo 2GHz
MEMORY: 2 GB
HARD DRIVE: 8 GB
VIDEO CARD: DirectX 10 compatible or later with 512MB RAM
AMD: ATI Radeon 3650, 4450, 5550, 6450 or higher (per series)
NVIDIA: GeForce 8600GT, 9500GT, GT120, GT430, GT520 (per series)
SOUND CARD: DirectX 9.0c compatible
INPUT: Mouse and keyboard, Xbox360 controller also supported
Recommended system requirements
OS: Windows 7 64
AMD: Phenom 9850 Quad-Core
Intel: Core 2 Quad Q6600 2.4GHz
MEMORY: 2 GB
HARD DRIVE: 8 GB
VIDEO CARD: GeForce GTX 285 / Radeon HD 5830
SOUND CARD: DirectX 9.0c compatible
INPUT: Mouse and keyboard, Xbox360 controller also supported
