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Master Geek
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Topic # 224326 13-Nov-2017 10:15
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I was wondering what i7 CPU would be recommended for use with dedicated CAD software (including, but not necessarily limited to, ArchiCAD and Artlantis). I'm looking at an 8 core, unless that's considered under/overkill?!

 

 

 

Any advice would be gratefully received.


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Mad Scientist
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  Reply # 1900058 13-Nov-2017 10:25
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I'd check out AMD Ryzen's 8-16 cores too if i were in your shoes.

AMD Ryzen Threadripper I think they're called.



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Master Geek
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  Reply # 1900061 13-Nov-2017 10:27
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Thanks for the tip. Is your advice based around cost, or other technical specs? (I've not worked with AMD CPUs before)


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  Reply # 1900062 13-Nov-2017 10:29
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Based on the crushing performance of the Ryzen Threadrippers. No idea about cost. But they are very power hungry for obvious reasons.



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  Reply # 1900065 13-Nov-2017 10:32
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Many thanks.  :)


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  Reply # 1900070 13-Nov-2017 10:37
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I haven't spent time with ArchiCAD or Artlantis, I spend most of my time between Solidworks and Autodesk for both CAD and CAM work.

 

I haven't upgraded for a while, but the CPU my quad core i5 doesn't struggle with the CAD or CAM operations. I've found that running both the Applications and projects from a decent SSD and having plenty of RAM helps the most. In addition to these, the video card choice can make the biggest difference and can massively impact things like rendering and post processing times. Simulating a CAM milling operation will often push my GPU harder than many games due to the number of polygons and the accuracy these programs aim for.

 

 




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Master Geek
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  Reply # 1900071 13-Nov-2017 10:39
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Thanks very much for your input. I'm looking at least 16Gb RAM, and definitely an SSD for the OS and software. GPU-wise, I was considering a nVidia Quadro P1000 - any thoughts on that?


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  Reply # 1900077 13-Nov-2017 10:46
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I haven't had the chance to play with the later Quadro cards, but they have always been reliable, I used to use them for significant GIS work and they never had much trouble keeping up.

 

ArchiCAD actually has a good write up on the site. it looks like the P1000 only starts to have trouble once you hit the really large polygon counts - https://helpcenter.graphisoft.com/technotes/video-cards/recommended-video-cards-for-archicad-21/ .Looks to be a memory constraint first as the lower memory cards  drop off the quickest.


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  Reply # 1900078 13-Nov-2017 10:50
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As above: GPU is far more important than CPU. Check the software manufacturer recommendations - I imagine it'll be OpenGL 2.0+ and project size dependant.


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  Reply # 1900102 13-Nov-2017 11:05
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At work we found digging into user forums provided good information.

 

We have had problems with workstations and graphics cards for some autodesk software, with locally built PCs.

 

We tried the vendor recommended and Autodesk certified HP Z440 workstation with Xeon E5 16 GB Ram, Nvidia K4200 graphics, fitted an SSD and had some issues and marginally improved performance, over previous PC. And the cost of the HP was not justified, still had a motherboard failure and some other issues. 

 

The break through for us was to find the main component of software as part of a infrastructure design suite a few of us use, Civil 3D will only use a single core, so the core speed is critical not the number of cores or threads. Sure some of the other rendering stuff runs really well, but not the bread and butter every day component.  

 

Current workstations are i7 4.20 Ghz, 16 GB Ram and graphics Nvidia M2000 4GB and a good SSD.


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  Reply # 1900113 13-Nov-2017 11:26
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Sounds like you really want an i7 7820X (Anandtech Review)

 

Alternatively the Ryzen 1700, 1800 or 1900 are alright, but not quite in the same ballpark. The i7 is a bit more expensive, but not too bad for business value, and way cheaper than last years 8 core CPU's.




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  Reply # 1900167 13-Nov-2017 12:33
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Thanks to all for the tips and advice!


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  Reply # 1901060 15-Nov-2017 07:50
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Hi

 

I use archicad every day for work.

 

I have found that quad core I7 are fine as a processor, because it is not just the processor that matters, you need a good video card, a nivida 1070 or 1080 & a good ssd + lots of fast ram, 16gig min, but 32 would be better.

 

my 2 cents.

 

Greg


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