Autodesk Revit Architecture

[#1]

I installed Revit 2011 & 2012, and both have been running extremely slow.  Previously, they were running slow AND crashing due to lack of memory, so I upgraded to Windows 7 64-bit (from the 32-bit version).  That has helped the crashing, but not the speed.

What should I look at next?  I am running a Dell Precision T3500 Quad Core tower with 4GB of RAM and Intel Xeon CPUs.  My display adapter is an NVIDIA Quadro NVS 295.  

Thank you!

[#2]

Depending on the size of your projects, in MB--you may still need more RAM.

Rule of thumb is compacted central file size in MB x 20 = amount of RAM required.

So-- 200 MB file x 20 = 4GB of RAM required TO RUN THE REVIT FILE, n.i.c. the Windows OS or other apps

which will require at least another GB of RAM.

cheers

[#3]

I installed Revit 2012 on a Dell Vostro 3750 laptop with 4 MB of memory and experienced extremely slow performance that was unworkable. I received a message I was out of memory so I added another 4 MB but that didn't solve the problem. I went into "Options", and on the "Graphics" tab unchecked "Use Hardware Acceleration (Direct3d)". The problem was solved and the commands were instantaneous again when I clicked the mouse, not the 10-12 seconds of delay.

[#4]

Great, great, great. 

That really worked  

The graphics went a little different, with ticker lines, but it works really fast now. 

What does the setting actually do? 

[#5]

It disables some of the more advanced graphic controls, like anti-aliasing and ambient shadows.  And while it will make things seem faster, you'll be confused when you go to a 3D view one day, and can't figure out why you the soft shadows box is grayed out.  Having only 4 GB of RAM is pretty light.  I'd recommend at least 8, but 16 will be better in the long run.  RAM has way more to do with the speed than the processors.

[#6]

Okay, I see. 

Even turning on the oridinary shadows makes it noticeably slower.

But things normally don't look very nice in Revit anyway  

Thanks again!