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Some cad/gaming computer advice?

post #1 of 12
Thread Starter 
Hi. I'm currently a high school student working on a robotics team. I plan on building a computer some time. Now, I need to make a couple decisions. First, I will need a computer for gaming. I already have all that down.

The real trouble I'm having is what hardware I need to run CAD programs: Autodesk Inventor 2011 to be exact. I want to make CAD models of robots like the one in the picture. I will run motion simulations and render animations of it (usually 1900 x 1200 for display and presentations).
Now, what I need to know is:

- How much RAM do I need? (8 vs 12 vs 16gb)
- Will Crossfire HD 6950's (2gb) be fine, or do I need to switch one of those for a decently cheap workstation card?
post #2 of 12
8gb ram will be fine, as long as its good speeds, and the 6950's in CFX will be fine, a cheap workstation card will be awful at either application, because they are only really for other applications.
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post #3 of 12
You will be fine with 8 gigs of ram my friend and crossfire hd 6950's is more than enough.. i used cad for 4 years in high school with computers no where near thos specs autodesk will run like a champ wut proc do you have? that is a huge part of it as well
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post #4 of 12
Thread Starter 
Quote:
Originally Posted by ITS OVER 9000! View Post
You will be fine with 8 gigs of ram my friend and crossfire hd 6950's is more than enough.. i used cad for 4 years in high school with computers no where near thos specs autodesk will run like a champ wut proc do you have? that is a huge part of it as well
Thanks! That's all I needed to know. Also, i7 2600k, I have yet to build it. I'm currently using a laptop with a T3400 with integrated graphics and 2gb ram. Big upgrade, isn't it? It took 11 minutes to render the attached picture, longer than it took me to build it. It's about the size of a couple tv remotes.
post #5 of 12
Quote:
Originally Posted by HotButtMud View Post
Thanks! That's all I needed to know. Also, i7 2600k, I have yet to build it. I'm currently using a laptop with a T3400 with integrated graphics and 2gb ram. Big upgrade, isn't it? It took 11 minutes to render the attached picture, longer than it took me to build it. It's about the size of a couple tv remotes.
haha ya that is a massive upgrade you will be able to render a ton faster!! what rendering tool is that looks like flamingo?
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post #6 of 12
You're better off in the long run getting a Nvidia card. They're better supported. You also want to max the system ram especially when you get into solidworks and other higher end design tools. With how cheap ram is now, it's an easy move.
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by tsm106 View Post
You're better off in the long run getting a Nvidia card. They're better supported. You also want to max the system ram especially when you get into solidworks and other higher end design tools. With how cheap ram is now, it's an easy move.
I've heard that about Nvidia, I'll keep that in mind. And if I need 16gb, I could just go to best buy and get some. The model I'm working on now eats up 1.25 gigs, and it's about half the size of my 15" laptop (I do very detailed and realistic models). I'll need to do models bigger than me eventually.
post #8 of 12
my two-cents..for what you're doing with the cad..nvidia cards are better-suited probably 2 560Tis would serve you well
 
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post #9 of 12
Er, running professional application would highly recommend AMD FirePro or NVIDIA Quadro graphic cards seriously.

Modern consumer GPU are for games only not for rendering.

FirePro / Quadro cards are designed for real time rendering in CAD, Maya and etc. Live preview of the model without needing to hit the render button even single changes you do.

I've work with Maya, it's a pain to work on a consumer GPU and depends on CPU to do all the rendering jobs. For having a Quadro/ FirePro it save you time by a chunk. Live rendering.

NVIDIA Quadro:
http://www.nvidia.com/object/workstation-solutions.html

AMD FirePro: (look at the menu on the left)
http://www.amd.com/us/products/works...irepro-3d.aspx

These cards range from $150 to $2000. Depends how much power you needed.
Average is $400.

Why not install 2 cards without the SLI/Crossfire Bridge so you can switch in between. I've never tried, I can't guarantee that.
Edited by djriful - 10/31/11 at 4:37pm
 
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post #10 of 12
Quote:
Originally Posted by HotButtMud View Post
I've heard that about Nvidia, I'll keep that in mind. And if I need 16gb, I could just go to best buy and get some. The model I'm working on now eats up 1.25 gigs, and it's about half the size of my 15" laptop (I do very detailed and realistic models). I'll need to do models bigger than me eventually.
Some of our projects in Solidworks won't even load w/o 20GB ram on tap lol.
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