Since the initial release of 2008, Autodesk have provided us with a number of new builds and it would seem that in my view, Revit performance has got better under Vista. So I decided to revisit the Vista operating system a few months back. What I have discovered whilst using Revit Architecture 2008 in a Vista environment is that it’s worth doing a few tweaks to the interface to improve performance. My laptop is a Dell M65 4gigs of RAM, 2.33ghz Centrino Duo with a 512mb Nvidia graphics card. Whilst this spec may seem high, its run of the mill these days, you only need to take a quick look at the Dell website to check out the latest specs. Vista is memory hungry so it’s worth adding 4 gigs of RAM if you can afford it and enabling the 3 gig switch. Enabling the 3gig switch in Vista is different compared with setting this up in Windows XP. Guidance on how to do this can done can be found at the following two web sites. If you are running Vista 64 you won’t need to worry about this.
It is defiantly worth making sure that your graphics card supports OpenGL under Vista and that you have the latest drivers. Whilst OpenGL in Vista is only an overlay to DirectX, if you use shadows a lot, a graphics card which supports OpenGL is essential.
I have also discovered that Revit seems to perform better without the Aero interface turn on. If you are not using OpenGL graphics it doesn’t seem to make a lot of difference, but with OpenGL enabled in Revit and the Aero interface turned on you seem to get screen corruption. I have certainly encountered this.
To disable the Aero interface; Right-click the desktop > Personalize > Windows Colour and Appearance and choose Windows Vista Basic.
It’s also worth adjusting the visual effects; these are the ones I use, which still give me the Vista look and feel whilst retaining performance.
Disabling transparency also seems to help: Right-click the desktop > Personalize > Windows Colour and Appearance. Uncheck Enable Transparency > OK.
Disable the annoying side bar also seems to help: If you don't use it, get rid of it -- it's just eating system resources. Right-click the Sidebar > Properties > uncheck Start Sidebar When Windows Starts > OK. Then, right-click the Sidebar > close Sidebar. If you want it back, click Start > type "sidebar" and press Enter.
I found most of the performance information I required at these two sites, however I am sure you will find additional information spread across the internet.
These are only my finding and I am sure others may have had better or even worse experiences than me. However, Windows Vista service pack 1 will be with us in the next few months and I am sure this will improve performance even further. To top that, from what I am seeing, the performance of Revit Architecture 2009 under Vista is even better than the Revit Architecture 2008.