NEW PC for CPU and GPU Rendering

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alexandrejcb

Commendable
Nov 28, 2016
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1,510
HI guys!
First post here, hope didn´t do anything wrong.

I work as CGI artist freelancer and I´m mounting a new rig for both GPU and CPU rendering.
My workflow is basically 3D MAX, Zbrush, Vray, Octane Render and Photoshop
My Sabertooth x79 is showing some problems, it only reconizes half of the memory installed.
I´ve searched for a motherboard to replace, but x79 motherboards are about USD400-USD700!! :ouch:
I´m runnin a 3930K, Sabertooth x79, 64gb mem, GTX780 + GTX 1070 and I´ll keep my Carbide 500R Case and my Seventeam 850w PSU

After some reseaarch what I can pay for is a I7 6800K or a I7 6850K.

Processor:
-6800K has 28 pci lanes USD 379
-6850K has 40 pci lanes USD 499

Motherboard (open for suggestions)
GIGABYTE GA-X99P-SLI (rev. 1.0) LGA 2011-v3
http://www.newegg.com/Product/Product.aspx?item=N82E16813128885
X99 Taichi LGA 2011-v3
ASRock]http://www.newegg.com/Product/Product.aspx?Item=N82E16813157719&ignorebbr=1]ASRock
MSI X99A SLI PLUS LGA 2011-v3
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130841&ignorebbr=1

Memory (open for suggestions)
CORSAIR Vengeance LPX 32GB (4 x 8GB)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233776

I´m planning to add more 2GTX 1070 in the future.
I´d like to know if this difference of USD120 worth the performance or should i go with the 6800K and invest in more 32gb memory with this money.

Will I have a good improvement with this upgrade? Or should just buy an used x79 board an save my money for a xeon in the future?

What would you suggest?

Thanks
 
Solution
kanewolf
An E5-2603 v4 is fairly cheap, but it is pretty low clock also. A 6800K will get more done today (it has hyperthreading that the Xeon doesn't) than a 2603v4 at the expense of PCIe lanes in the future.
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alexandrejcb

Commendable
Nov 28, 2016
2
0
1,510


I´m planning in use 3 or 4 GTX 1070 for rendering in the future.
 
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Mikel_4

Mikel_4

Respectable
Oct 15, 2016
712
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  • ■ Use cheap Xeon E5 2603 V4 since you use octane, also all Xeon E5 V4 are 40 lane PCIEX so you get 8+8+16+8 lanes.
    ■ Go for four double space PCIEX so later you can use four graphic cards. Taichi and SLI plus are three cards arrangement, The X99P SLI has aluminum slots suppose to prevent bent.
    ■If you can find refurbished or used GTX 780Ti at the same or lower price of new GTX 1070 then get it for your octane.
 
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Mikel_4

Mikel_4

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Oct 15, 2016
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    ■ More like GPU base render workstation
    Yes its 1.7GHz quad core quad thread only, I was pointing to the fact that he is using CUDA base GPU rendering (Octane), The reason I did that because to build CPU+GPU rendering will cost hefty initial spending, he probably knew that's why he mentioned adding two more GTX 1070 (~US$ 800).
    ■ Multi thread utilizing
    Last time I check, a US$ 600 GTX 780Ti is faster than US$ 1.000 i7 6900K (in my build) for V-ray, having fast multi cores CPU be useful at program loading and file's format trasncoding (tested it by set 6900K to dual core and down clock to 2GHz), but when I use V-ray GPU RT render, couldn't notice different between 12 thread @ stock speed and 4 thread @ 2GHz.



 
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