Butaman Renderer

http://www.luxology.com/tv/training/view.aspx?id=536
14 minute video on the Luxology site.

http://www.vizworld.com/2010/08/luxology-cpu-gpu-ray-tracing/
Learned about it from Vizworld.

The comparison is between Modo on a 12 Core CPU and Octane on 2 GPUs. I think there is a definite bias towards presenting their own product in the best light, but it’s an interesting comparison. The Luxrender wiki mentions it as well (http://www.luxrender.net/wiki/index.php?title=Luxrender_and_OpenCL#CPU_.2B_GPU_.2B_Network_Rendering), but I think I do agree that an heterogeneous solution that utilizes both CPU and GPU is the best looking solution.