Where is this Intel/AMD Blender benchmark? DX11 (and OpenGL) need to do a bunch of resource tracking, barrier injection and ad-hoc re-programming of the pipeli

Where is this Intel/AMD Blender benchmark? DX11 (and OpenGL) need to do a bunch of resource tracking, barrier injection and ad-hoc re-programming of the pipeline. That stuff takes effort to do efficiently. I don't think the perf is simply due to game-specific arrangements. DX12/Vulkan just move all of that responsibility on to the application side, and you can see similar disparities among those applications themselves depending on how much time was put into optimizing the rendering.