Chisholm
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Saturday, January 30, 2010 7:41 AM
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I am having a big problem doing 3D CAD operations. Even Google Sketchup slows to a crawl when i do complicated multi story building. I want to build my own system. Would a GTX 260 or 275 be better than 9800 GTX for my use? How much better? Any suggestions? My budget is not unlimited. I am looking at a Intel Core i7 Processor i7-920 2.66GHz 8 MB LGA1366 CPU BX80601920 Most of the forums just talk about gaming!
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dwoodward
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 7:44 AM
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A 9800 GTX would be plenty for CAD Based applications. Hell at my former company they used FX5200's for 3D Modeling.. it was slow but still worked.
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ablearcher
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 7:56 AM
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Chisholm
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 8:04 AM
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ablearcher
What 3D CAD program?
Punch AS500, TurboCAD, Google Sketchup
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ablearcher
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 8:11 AM
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☄ Helpful
Okay, MOST 3D animation programs are CPU/RAM heavy. I know at work, we got away with FireGL V3100 (old, ATi x700 based cards) cards, since our rendering was limited by our CPU/RAM setups. Sketchup recommends ATI GPU for it, due to OpenGL implementation differences. http://sites.google.com/site/sketchupsage/problems/gpu TurboCAD does NOT use the GPU, iirc, for any sort of acceleration. The last program, I don't know anything about. Best of luck!
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Chisholm
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 8:17 AM
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Thanks. It cost me a lot to sit here twiddling my thumbs while Google Sketchup or Punch takes 30 minutes to render. I am a novice on the systems. ATI GPU? will the system i want to build help here? And what do you think, the GTX 260 or 9800 GTX? I might put one of those in the system i am using now also. its dual Pentium D CPU 3.60 Ghz Gateway with Geforce 6600.. I also want to add some memory to this system. currently 3 MB.
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ablearcher
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, January 30, 2010 7:36 PM
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The pentium D will be the greatest limit.
Since it is clocked at 3.60GHz, is it an old NetBurst core? If so, even a 1.86GHz Core2Duo will outpace it.
My rendering farm was limited by it's 6 P4 2.8GHz HT.
One i7 920 easily outdid the entire farm.
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hanzo111
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Re:3D CAD GTX 260 vs 9800 GTX
Sunday, January 31, 2010 3:16 PM
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Ill weigh in here a bit. I have been designing in cad for over 6 years now for a living. My partner has used Rhino since its release. We do CAD/CAM and have rapid prototype equipment as well. Most CAD programs are CPU dependant, all # crunching for rendering is done by the CPU in Rhino and it doesnt care what gpu you have. Although they do not recommend ATI due to a conflict with the drivers? The more ram the better but most of those programs only operate in 32bit mode as Rhino does. so my 4 gigs of ram are worthless, My Quad core is not though, while rendering I use flamingo and V-ray, they will both take full advantage of as may cores as you can use. I am waiting for the dues cpu board to come out with 2 septicores, that should speed things up a bit. if not im just going to do an I7 with fast ram and thats it. sorry im not too technical. i just know from what other major players in my industry use. find out if a fire GL card really is needed, Rhino recommends a card that can do open GL but none of us use one, we just use a good card, right now im running a gtx 285, but i dont see a difference from this and my 8800gts 512, none whats so ever. here is some of our work. www.growwax.com
www.growwax.com www.Dahbo.com Q9450 corsair dominator 1066 4 gigs corsair TX 750 gtx-285 oc x 8800 gts 512-physics 10,000 Raptor 1 ter caviar
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ablearcher
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Re:3D CAD GTX 260 vs 9800 GTX
Sunday, January 31, 2010 5:04 PM
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^^^ Nice!
I personally don't know (other than higher prices, and sometimes more memory - and perhaps EEC?) the difference between workstation card and a desktop card.
They both support the same feature sets (OpenGL, DirectX)
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clo007
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, February 13, 2010 3:17 PM
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Do not get an ATI card for Sketch-up. Nvidias actually work better.
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clo007
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Re:3D CAD GTX 260 vs 9800 GTX
Saturday, February 13, 2010 3:23 PM
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ablearcher
Okay, MOST 3D animation programs are CPU/RAM heavy. I know at work, we got away with FireGL V3100 (old, ATi x700 based cards) cards, since our rendering was limited by our CPU/RAM setups.
Sketchup recommends ATI GPU for it, due to OpenGL implementation differences.
http://sites.google.com/site/sketchupsage/problems/gpu
TurboCAD does NOT use the GPU, iirc, for any sort of acceleration.
The last program, I don't know anything about.
Best of luck!
The only time ram comes into play with a render is if you have a extremely high polygon count and then the computer will cache information in the ram to send to the cpu. Personally, I would stay away from ATI cards for sketch-up. I use sketch-up everyday at work( I am an architect) and we had nothing but issues with ATI cards because of the drivers. Nvidia cards are fine. Any card will do with cad and sketch-up. A 9800 series would be fine. No program is GPU dependent right now in this field, so spending a butt load of money on a GTX285/295 would be pointless. If you are having issues with stuttering in sketch-up it probably due to the card features not being set up right. Some good resources for you to look at: www.sketchucation.com www.cgarchitect.com Hope this helps.
 
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