It depends on your tasks. If you don't do anything 64-bit specific, you won't see any difference so you should check other parameters while doing an upgrade (CPU speed, Memory capacity, etc).
Thanks for the info HB. I really don't perform a lot of 64-bit tasks at present, but will be doing so in the future. According to Dell the 380 is very robust and will probably be fine with the upgrade. Unfortunately Dell has led me astray before with things like this. I was just curious to see if anyone had actually performed this upgrade with a 380. I'm also upgrading to Windows 7 and thought I'd check into the 64-bit as well.
If you are getting a new version of Windows for it (Win 7 as stated...) there is NO reason not to get the x64 version.
Performance between the x32 and x64 versions is virtually identical, that is unless the application you are using could use more than 2Gb of RAM (the most any single application can use under x32 without tweaking).
Seeing as you are using a workstation, I would assume that your software has x64 versions and, when/if you work with large files/memory dependent apps, x64 is far superior.
Get the x64 version, there is no good reason not to.
------------------------------If the automobile had followed the same development cycle as the computer, a Rolls-Royce today would cost $100, get a million miles to the gallon, and explode once a year, killing everyone inside.
PSA
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