> There are studios using GPUs for some workflows but most of it is CPUs.
This is probably true today, but leaves the wrong impression IMHO. The clear trend is moving toward GPUs, and surprisingly quickly. Maya & Houdini have release GPU simulators and renderers. RenderMan is releasing a GPU renderer this year. Most other third party renderers have already gone or are moving to the GPU for path tracing - Arnold, Vray, Redshift, Clarisse, etc., etc.
This is probably true today, but leaves the wrong impression IMHO. The clear trend is moving toward GPUs, and surprisingly quickly. Maya & Houdini have release GPU simulators and renderers. RenderMan is releasing a GPU renderer this year. Most other third party renderers have already gone or are moving to the GPU for path tracing - Arnold, Vray, Redshift, Clarisse, etc., etc.