Quality : No difference at all (assuming you render the same number of passes)
Speed: It is slower (than GPU or Hybrid) for sure, but how much slower will depend greatly on your setup. ie; what GPU would you be using? What number/type/speed CPU's are you using, etc. etc.
Quality : No difference at all (assuming you render the same number of passes)
Speed: It is slower (than GPU or Hybrid) for sure, but how much slower will depend greatly on your setup. ie; what GPU would you be using? What number/type/speed CPU's are you using, etc. etc.