GPU vs CPU rendering, 2017

3 May, 2017 XeoniuMiX
3 May, 2017 # Re: GPU vs CPU rendering, 2017

Hello!

I am choosing a configuration for the rendering machine and came across another news about GPU and Vray, and now it's supposedly very cool, works great etc. What do I get now, xeons or video cards?? I work with interiors mainly.


4 May, 2017 Anton (Staff Author)
4 May, 2017 # Re: GPU vs CPU rendering, 2017

Hello,

 

Actually I haven’t heard any news about something that changes the fact that GPU is worse than CPU in production 3d rendering since 2012. GPU renderers still are limited in functionality comparing to its CPU analogs. GPU renderers still have to settle for the scanty amount of memory available within the graphic card only. Thus, there is nothing to decide: CPU rules!

Please share with us the news which made you doubt, we’ll discuss them.

 

Off-topic: Xeon may not be the most rational choice for the 3d rendering.


3 May, 2017 XeoniuMiX
4 May, 2017 # Re: GPU vs CPU rendering, 2017

At first, I saw on Facebook a one guy post about that he assembled a computer with four 1080ti GPUs for V-Ray rendering. Then I found post on some CG site, also telling that you can create all your renders using VrayRT only. Also saw some diagrams in internet which demonstrates huge render time decreasing then someone use GPU for render instead of CPU. So I thought, maybe I miss something and according to a new 3d rendering trends GPU is rules?

Anyway, many thanks for the answer!

 


4 May, 2017 Anton (Staff Author)
8 May, 2017 # Re: GPU vs CPU rendering, 2017

Hello,

 I think you mean this post about four 1080ti GPUs. Read it before. It has nothing except some dude assembled 4xGPU PC and renders some images using it. Yes, the PC rig photos are cool… with DOF… reading was fun! But there are no GPU vs CPU comparisons, no useful conclusions. I don’t see any reasons why you have decided that GPU is more suitable for your 3d rendering purposes.

 

Regarding the Xeon as the V-Ray rendering CPU please follow the link.


3 May, 2017 XeoniuMiX
8 May, 2017 # Re: GPU vs CPU rendering, 2017

When you see statement: ‘V-Ray will be render one 4K frame for about 2 hours while the Graphic Card will do this job for a ~30 minutes.’, especially on respected resources, you begin to wonder. Did I miss something???

 

Well, now I see what processor still the best choice for my renders. Thank you very much for the expanded answer and for the links! Went to read.


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