Here are the Brink requirements.

Brink System Minimum Requirements

CPU: Intel Core 2 Duo 2.4GHz / Athlon 64 X2 5600+ or equivalent
RAM: 2GB RAM
GFX: NVIDIA 8800GS / ATI Radeon HD 2900 Pro or equivalent
OS: Windows XP(SP3)/Vista/Windows 7
Hard Disk: 8GB Free

[Minimum requirements are the bare minimum to get the game playing and by possibly reducing the screen resolution.]

 

Brink System Recommended Requirements

CPU: Intel Quad Core i5 / Phenom II X4 620
RAM: 3GB RAM
GFX: Nvidia GeForce GTX 460 / ATI Radeon HD 5850
OS: Windows XP(SP3)/Vista/Windows 7
Hard Disk: 8GB Free

[Recommended requirements are often listed as the system you would require to get the game running at a great rate with graphical features turned up on a large screen resolution etc.]

 

Game-Debate Requirements for Brink

CPU: Core 2 Duo E7500 2.93GHz / Phenom II X2 555
RAM: 3GB RAM
GFX: GeForce GTS 250 / ATI Radeon HD 3870
OS: Windows XP(SP3)/Vista/Windows 7
Hard Disk: 8GB Free

[Game-Debates Requirements are what we think you can get Brink running comfortably on. For example, you may not be able to turn anti-aliasing on but the game will still play and look just great at your standard resolution. We will adjust these requirements based on your feedback and they will power the system requirements tool on the game page]