In addition to the general system requirements for Unity Authoring System Requirements for Unity Android Authoring The rest only depends on the complexity of your projects! System Requirements for Unity iOS Authoring The rest only depends on the complexity of your projects!. Using Occlusion Culling requires GPU with Occlusion Query support (some Intel GPUs do not support that). Graphics card with DirectX 9 level (shader model 2.0) capabilities. Note that Unity was not tested on server versions of Windows and OS X. Windows: XP SP2 or later Mac OS X: Intel CPU & 'Leopard' 10.5 or later.
