That said, the reality today is most computers are running 64-bit Windows and have more than 2GB of RAM installed. So while it would not make sense to use, and you are not likely to see a 64-bit OS on a system with only 2GB of RAM, there really is no reason you cannot use a 64-bit program if there was a 64-bit OS installed. If a system is taken down because of that extra 12MB, there are other issues and that is an exception, not the norm. I then exited that and started the 64-bit version to the same home page and Task Manager reported using 144MB. I fired up the 32-bit with the home page set to Google and Task Manger said I was using 132MB of RAM.

As a test, I have both the 32-bit and the 64-bit version of PM on my test system. But I will say, the 'hours' one uses a browser (or any program, including the OS) has no bearing at all on whether 32-bit or 64-bit is better.Īnd the reality is, with the exception of the OS itself, the difference in the amount of resources the 64-bit program uses vs the 32-bit version (assuming the same features and configuration in each) is negligible. No doubt 64-bit Windows will support a 32-bit browser so that is not the issue. I was not looking at this as what is required or better.

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