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Forums >> Workflow & Implementation >> Hardware >> Will Revit and autoCAD 2012 and newer use more than 4 cores for 3d draftnig?

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Thu, Jun 7, 2012 at 2:31:27 PM | Will Revit and autoCAD 2012 and newer use more than 4 cores for 3d draftnig?

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arice701


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I have been looking everywhere for this answer. I have read many places it will use as many cores as it can for rendering but i dont know what is considered "rendering".  Basically i am doing BIM plumbing and HVAC models in autocad MEP and revit MEP both and it take a lot of time to change beteen views and it also very choppy in 3D drafting.  If revit and autocad 2012 and newer will use all 6 cores in  while im drawing and coordinating and speed up my selecting and modifying objects and moving around in 3d and 2d then i will go with teh i7-3930k, otherwise i am going to go with the i7-3820 or 3770k.

So, will 6 cores be used by revit MEP and autoCAD MEP 2012 and newer for:

1). Drawing in 2d, moving between viewports and selecting, modifying and drawing objects in 2d?

2) drawing and moving around in 3d and selecting, modifying drawing objects in 3d?

 

Thanks

Andrew Rice


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Thu, Jun 7, 2012 at 2:55:59 PM | Will Revit and autoCAD 2012 and newer use more than 4 cores for 3d drafting

#2

alabaster2513


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in a nutshell NO, there is no reason to harness the entire ability of todays processors to do a simple command like drafting a wall or similar.

 

revit does multithread for high calculation functions already. and a lot of the visual abilities are now being handled by the GPU

 

http://wikihelp.autodesk.com/Revit/enu/Community/Tips_and_Tricks/Performance/Multithreaded_Processes_in_Revit


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Tue, Jun 26, 2012 at 11:11:32 PM | Will Revit and autoCAD 2012 and newer use more than 4 cores for 3d draftnig?

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designmech0108


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Andrew,

When you switch between views, that is regeneration ("regen"). When you are zooming in and out on the 3d or 2d model and performing drafting functions that is when the model continuously redraws. Rendering is different, it is a specific function that you get the software to perform on the model that takes a 3D view of the model (usually done by setting up camera views within the 3D viewing environment in Revit Architecture) and "renders" an image of that particular view of the model with effects applied (natural lighting, shadows, etc.). Rendering does use all cores and threads available, thus is performed faster if you have more cores/threads, and high clock speeds. If you do not render that often, or do not render very large, complex scenes, I would save the money and not get the six-core 3930K. Don't get the i7-3820 either, as this processor is paired with the same chipset (X79) as the 3930K. Unless you think you will have a use for 32-64 GB of RAM (which the X9 motherboards are capable of holding). As far as other drafting and modeling tasks besides rendering, I have not heard of the Sandy Bridge E chips (i7-3820, i7-3930K and i7-3960X) offering tangible benefits in those areas, unless anyone else has had different experiences.

What are your current system specs? You might better the performance of regen and redraw by installing more RAM and/or a higher end video card with more memory.

If you are interested in a totally new system, I would probably go for the i7-3770K paired with a good Z77 (or even Z6Shadey motherboard, a solid graphics card with as much memory as you can get, and 8 GB minimum of RAM. You might also see a benefit with loading the OS and applications on a solid state drive, and use an HDD as the data drive. The 3770K has 8 threads available so it is no slouch at rendering, even if it is not a monster like the 3930K. You can overclock the "K" spec chips fairly easily (if you didn't already know that).

Are you going to be building this system yourself, or buying prebuilt, or is this a wishlist to your IT department? Whichever way, you would benefit yourself to research the different options (processors, video cards, etc.) prior to making any decision.


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Tue, Jun 26, 2012 at 11:13:35 PM | Will Revit and autoCAD 2012 and newer use more than 4 cores for 3d draftnig?

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designmech0108


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Sorry, that should be "Z68", not "Z-emoticon".


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