Blender
render time comparison
http://xx7y7xx.github.io/attachments/spreadsheets/d/1l2y2KktDDMAvYe7ZeFiUNEJLmyR0s9vZdYY3fAnkgEI/pubchart.html
Do not create *.blend1 (blender backup file) when saving a blend file
bpy.context.user_preferences.filepaths.save_version = 0
Cycles
Limitations:
- CUDA limitations:
Render a Complex Scene using Render Layers
http://www.blenderguru.com/articles/how-to-render-a-complex-scene-without-crashing/