To run Portal 2 on PC, you need at minimum 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher) CPU, 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). GPU, 2 GB RAM, and Windows 7 / Vista / XP operating system. Use the compatibility checker below to see if your specific hardware meets the requirements.

Minimum requirements for Portal 2: CPU — 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher), GPU — 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)., RAM — 2 GB, OS — Windows 7 / Vista / XP. See the detailed comparison above for recommended specs.