Here are the Deus Ex: The Fall System Requirements (Minimum)
CPU: 2 GHz Dual Core
CPU SPEED: Info
RAM: 2 GB
VIDEO CARD: DirectX 9.0c compatible graphics card (GeForce 6500/Radeon x1300)
PIXEL SHADER: 3.0
VERTEX SHADER: 3.0
OS: Windows XP SP2
FREE DISK SPACE: 4 GB
SOUND CARD: Yes

Deus Ex: The Fall Recommended Requirements
CPU: Quad Core 2.66GHz CPU Intel or AMD
CPU SPEED: Info
RAM: 4 GB
VIDEO CARD: GeForce GTX 550 Ti or Radeon HD 7750 1 GB Graphics memory
DEDICATED VIDEO RAM: 1 GB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows 7 SP 1
FREE DISK SPACE: 4 GB
SOUND CARD: Yes