Heres something thats important: The profiler… When you start making your game, youll need to see where does the bottleneck is! As a start a render statistics display would be nice to have. The idea is to display on screen information about debug and performance, like show fps, draw-calls, objects on screen, triangles, etc. Heres an example -> http://docs.unity3d.com/Manual/RenderingStatistics.html
Neo-Maratis have a basic one, but seems unusable. Seeing the stats in real-time game window is preferable.