thanks for all you replies.

does anyone here have both poser 2014/10 and 2012/9  to make a test on a same example scene ?

As i said, the main point for me is money, i don't need other feature of pp2014/10 else the quicker render.

solution 1 : around 800$  if i upgrade my cpu, i will gain in global 33% of speed (by passing from 8 thread 3.33GHz to 12 thread to 3.33Ghz)

solution 2 : around 250$ : i f i upgrade the poser software, you said i might (not sure..) gain between 10 and 20% of speed.

solution 1 : 10% of gain costs 266$

solution 2 : 10% costs 250$ in least case (and 125$ in best case)

i am in an "no way" street because i have an old hardware architecture (core i7 classic), so if i upgrade the whole hardware (mb+cpu+ram) to the last architecture core i7-4xxx then i will gain at least 10% with exact same core/thread and frequency but it will cost more than 800$.

in other way , going to 6cores/12thread at 3.3Ghz costs me 800$ for the only cpu piece whereas in a whole new architecture (Core i7-4960X) would cost 1500$ to change the whole hardware (except storage and video card of course).

i can't render anywhere else Poser because i do render animations, (reality3 doesn't do animation) and i don't really know if Octane does it.  i want to render animation in real format (video codec, and NOT image by image with post work to do with reassembling the video...)

 

Best regards