I normally process several thousand frames across a render farm for my animations. I am in need of stronger and faster processing times. I have been trying to read up on GPU vs CPU. Up until recently, it all seemed pretty cut and dry. mRay = CPU and iRay = GPU.

Now it appears that mental ray can possibly use GPUs??? is this true or does metal ray still solely rely on the CPU? I need to know where to invest my money: Tesla GPU unit or Xcore 3.4Ghz processors.

I have no desire to switch my process to iray either, due to the versatility of mental ray.

Thanks in advance,