Quote - People you know, i have the hight frequency cpu amongst this playlist (3.6 GHz), and i have the almost worst render time too !

Well it's mainly cause the Pentium line is really old and Intel fixed most of it's mistakes with Core 2. Cache helps yes but the Core 2 was built from the ground up to be an AMD killer, which is also why the Q6600 is the best bang for the buck CPU you can buy (it was meant to kill AMD's Phenom) Xeons are great performers, but probably overkill for Poser.

Also you have to realize that it's not your CPU thats holding you back here, as much as firefly and poser's crappy way of handling textures. Like pjz99 said earlier, more then half the time in this scene is taken by poser loading textures, calculating shadow etc. The rendering itself takes like 30 sec on 4 threads.

To give you a comparison with what a good renderer can do, this also renders in under 3 mins (on mentalray):

That pic has a 100 apollos, all with SSS, GI, IBL, soft reflections etc. ie sometimes hardware is just not enough and you have to change your software as well.