I've run both the 32-bit and 64-bit versions and didn't notice a difference in performance, so it's either small or non-existent. A noticable increase in performance will only be seen in software designed to utilize 64-bit computing, but such software is still limited in availability, especially for Vista. For the time being I'd go the 32-bit route since there's less of a compatibility issue and a smaller download.
Hope this helps,
John
I've installed the 32-bit version several times on an Averatec AV6240 laptop running the AMD Athlon 64 3000+ processor with 512MB of memory. It's a great laptop, although it is very slow (running Vista). I'll invest in a 1GB memory module at the end of the month, and I'm sure that will make Vista run quite a bit faster.
I would like some opinions on whether I should run the 64-bit version instead. Will I see a perceived performance increase? Has anyone else had any experience with Averatec laptops and Vista? Has anyone had any experience with 32-bit versus 64-bit Vista?
-Woody
PS - I'm also running the beta version of Office 2007, so far so good. I like Vista, and I'll like it even more when I add more memory.

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