These are the min sys requirements and recommended system requirements for H1Z1:
Minimum:
OS: Windows 7 64 bit Processor: Intel i3 Dual-Core with Hyper-Threading (required) Memory: 4 GB RAM Graphics: nVidia GeForce GTX 275 series or higher DirectX: Version 10 Network: Broadband Internet connection Hard Drive: 20 GB available space Sound Card: DirectX Compatible Sound Card
Recommended:
OS: Windows 7 64 bit Processor: Intel i5 Quad Core or higher / AMD Phenom II X6 or higher Memory: 8 GB RAM Graphics: nVidia GeForce GTX 560 series or higher / AMD HD 6870 or higher DirectX: Version 10 Network: Broadband Internet connection Hard Drive: 20 GB available space Sound Card: DirectX compatible Sound Card