No official list unfortunately. However the general list at the moment: Actions that include duplicating, moving, calculating solids geometry, cut/add/intersect surface, and tool loading are all single core activities. Meaning that having more cores will not make them any faster. While TECHNICALLY a faster CPU core will make them faster, even comparing a 2Ghz core to a 5Ghz core yeilds hardly any difference (sub 1-2% in my tests), so the difference is academic. Rendering in Renderworks mod