The cost of Distance Field AO is primarily GPU time and video memory. DFAO has been optimized such that it can run on medium-spec PC, PlayStation 4, and Xbox One. Currently, it has a much more
reliable cost so that it's mostly constant (with a slight dependency on object-density).
In cases with a static camera and mostly flat surfaces, DFAO is 1.6x faster when compared to earlier implementations. In complex scenes with foliage and a fast moving camera, the latest optimizations
are 5.5x faster. The cost of Distance Field AO on PlayStation 4 for a full game scene is around 3.7ms.