thanks for the reply Coulter.
The configuration will have also water cooling for GTX, the 2 gigabyte are watercooled, at least there are the agreement with pc assembler shop.

yes I will consider to overclock CPU, what about overclock GPU's also considering them watercooled?
thanks!

Hello!
I'm migrating from a mac pro 12 core 3,03 Ghz to a PC configuration cause I want to integrate GPU rendering (Octane) I'll use VrayRT too and After Effcts cc2014 (multiprocessing mode), houdini/realflow for fluid particles.

This is the machine details:

cpu: Intel Core i7-5960X 3,0 GHz ...