I am currently running a dual core AMD 2.8ghz machine over clocked to 3ghz and I am in desperate need of an upgrade. I have searched high and low and cannot get a definitive answer for the question above.
Assuming that the rest of the component specs are identical in both machine builds (I plan on building this setup as soon as I can make up my mind as to what CPU config I use), what would render a 3D scene created in blender faster:
a dual 4 core xeon setup with the processors running at 2ghz
a single over clocked i7 quad core running at 4ghz.
Please keep the answers to the blender render scenario as introducing any variables like multi tasking into the equation will just confuse matters and probably turn this thread into a mirror of all the other confusing threads out there.