Operating System: Windows 7 (64bit), Windows 8 and Windows 10 (Windows Vista and XP are no longer supported) 50MB on your hard drive. In-game support: DirectX8, DirectX9, DirectX11 and OpenGL Microsoft .Net 4.5. CPU – If your computer runs your game, it will run Buff with it. RAM – At least 4GB of RAM (Recommended: 8GB) Our goal is for Buff to run efficiently on your CPU and video card. If your PC runs a game perfectly, it should easily support Buff. Still, if you encounter performance issues please write to us at support@buff.com and we will do our best to assist you.