To run the Unity Editor efficiently on a Mac, your system should meet the following minimum specs:

Unity 2018.3 introduced several "quality-of-life" and high-performance features that fundamentally changed the engine's workflow:

: Unity 2018.3 made the .NET 4.x runtime the default, bringing support for modern C# features.

: Painting tools and basemap calculations moved to the GPU, dramatically reducing draw calls.

: Access to the Unity Performance Reporting tools, advanced analytics, and professional build server licenses.

: While the initial installer is small, allow several GBs for the Editor and additional build modules (iOS, Android, etc.). How to Install Unity on Mac Unity 2018.3.0f1