Samson_bb wrote:
I Need to do some 3D rendering. I think it too slow for my 4core CPU. Actually I usually do some after effect and 3D things. So it may be more core is better? Because my Mac is using 64gb ram and fire pro D700 GPU. And I saw that most of the time the GPU have not calculate any things. Most of the things are calculating by CPU.
Kudos to you for correctly checking whether the CPU or GPU is currently doing the work. As a curiosity how are you checking the load on your GPUs? (Obviously Activity Monitor can monitor CPU activity but it does not monitor GPU activity.) Remember that as the new Mac Pro has two video cards the way Apple handle it is to dedicate one to screen processing, and the other for GPU processing, so it maybe only one GPU will be working hard for rendering tasks.
It would be worth checking your 3D rendering software to see what the authors say about the best way to speed it up, do they say it can take advantage of more CPU cores? What is the rendering software?
A further reminder that the new Mac Pro uses AMD GPU chips which do not support CUDA, in particular Adobe software is designed to work best with CUDA, Final Cut Pro X in contrast is designed for AMD chips.