Finally the official system requirements for Need for Speed Shift were published! You need at least the following minimum system configuration to play NFS Shift:

Required: Internet Connection
OS: Windows XP (Service Pack 3) or Windows Vista (Service Pack 1) / Windows 7
Processor: Intel Core™2 Duo 1.6 GHz or faster
Memory: XP: 1 GB RAM; Vista/Windows 7: 1.5 GB RAM
Hard Drive: 6 GB
DVD Drive: 8 SPEED
Video Card: 256 MB Video Card, with support for Pixel Shader 3.0*
Sound Card: DirectX 9.0c compatible
DirectX: DirectX 9.0c compatible
Online Multiplayer: 512 Kbps or faster; 2-12 Players
Input: Keyboard, Mouse
Optional: USB Steering Wheel / Dual Analogue Gamepad

*Supported Video Cards: ATI Radeon X1800 XT 512MB or greater; NVIDIA GeForce ... Read more »