NFS Shift 2 Unleashed, official system requirements

Minimum system requirements for NFS SHIFT 2 Unleashed:

• Required - Internet connection
• OS - Windows XP (SP3)/Vista (SP2)/Windows 7
• Processor - Intel Core ™ 2 Duo 2.0 GHz/AMD X2 64 2.4 GHz
• RAM - 2.0 GB
• Hard drive - 7 GB
• DVD drive - 8x
• Video card - DirectX 9.0c, 3D acceleration, 512 MB, Shader Model 3.0 (Supported chipsets: ATI HD3 series or higher; NVIDIA GeForce 8 series and higher)
• Sound card - DirectX 9.0c compatible
• DirectX - version 9.0c (Surprising, right?)
• Multiplayer (2 to 12 players) - Internet connection speed of 512 Kbps or faster
• "Input" - keyboard, mouse
• Optional - USB Steering wheel/Gamepad

Laptop versions of these chipsets may work, but are not supported. Most likely, only a driver update will be required.

EA Download Manager will require 8.16 GB additional disk space for temporary storage of installation files.

• Note - To properly install the game on Windows XP / Windows Vista, you must have administrator rights on your computer.

Officially Supported Steering Wheels:

PC

Logitech G27 Racing Wheel
Logitech G25 Racing Wheel
Logitech Driving Force GT
Logitech Formula Force EX
Logitech Driving Force
Logitech Driving Force EX
Logitech Driving Force RX
Logitech Driving Force Pro
Logitech MOMO series
Logitech MOMO Racing
Thrustmaster RGT FFB
Thrustmaster Ferrari GT Experience
Thrustmaster Ferrari 430
Fanatec Porsche 911 Turbo S

PS3:

Nascar Racing Wheel
Logitech Driving Force
Logitech Driving Force EX
Logitech Driving Force Pro
Logitech G25 Racing Wheel
Logitech G27 Racing Wheel
Logitech Driving Force GT
Thrustmaster FFB F430
Thrustmaster RGT FFB

Xbox 360:

Microsoft Force Feedback Wheel
Fanatec Porsche 911 Turbo

Source: needforspeed.com
Translation: PIONeeeR