UnityPerformanceBenchmarksOn this pageBenchmarksMemory Allocation Resource TypeAverage SizeTrack3 MBTheme10-30 MBBundle10-30+Track MB Performance BenchmarksScenarioCPU LoadMemory UsageSingle Theme Playback2-3%50 MBTheme Transition (Crossfade)5-7%+30 MB3D Spatial Audio (10 emitters)4-6%+15 MB Best Practice Concider Heavy functions as LoadBundle() should in most cases be called in Async mode. Use of: DontDestroyOnLoad() is Required for scene transitions.