Portal 2

Minimale

OS *: Windows 7 / Vista / XP Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher) Memory: 2 GB RAM Graphics: Video card must be 128 MB or more and with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher). DirectX: Version 9.0c Storage: 8 GB available space Sound Card: DirectX 9.0c compatible

Minimale

OS: MAC OS X 10.6.7 or higher Processor: Intel Core Duo Processor (2GHz or better) Memory: 2 GB RAM Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000 Storage: 8 GB available space

Minimale

OS: Ubuntu 12.04 Processor: Dual core from Intel or AMD at 2.8 GHz Memory: 2 GB RAM Graphics: nVidia GeForce 8600/9600GT, ATI/AMD Radeon HD2600/3600 (Graphic Drivers: nVidia 310, AMD 12.11), OpenGL 2.1 Storage: 8 GB available space Sound Card: OpenAL Compatible Sound Card