https://unity3d.com/unity/system-requirements
OS: Windows 7 SP1+, 8, 10; Mac OS X 10.8+.
Windows XP & Vista are not supported; and server versions of Windows & OS X are not tested.
GPU: Graphics card with DX9 (shader model 3.0) or DX11 with feature level 9.3 capabilities.
The rest mostly depends on the complexity of your projects.
cpu: i7 > i5
ram: 16gb+ ; ddr4+
storage: ssd + hdd
Найди сообщество разработчиков юнити и спроси, что они используют
