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maxweld
April 30th, 2012, 07:07 PM
I have an Intel Sandybridge processor and 16GB memory on my desktop, and run a few serious DB applications on it, and several VirtualBox VMs.

I often wonder why Canonical recommend the 32bit version for desktop installations.

What should I be concerned about if I use the 64bit version on my desktop?

Thanks in advance.

oldfred
April 30th, 2012, 07:13 PM
Moved to recurring discussions.

Why Ubuntu officially suggests 32bit (25% have 32bit systems)
https://lists.ubuntu.com/archives/ubuntu-devel/2012-April/035088.html

It is presumed that those with 64bit systems will know and use the 64bit system. There also a very few special applications that have not been updated.

Note from 2008
https://help.ubuntu.com/community/32bit_and_64bit

Essentially says if you can use the 64bit kernel you should.
http://www.phoronix.com/scan.php?page=article&item=ubuntu_natty_pae64&num=1
https://help.ubuntu.com/community/32bit_and_64bit
Ubuntu 32-bit, 32-bit PAE, 64-bit Kernel Benchmarks Dec 2009
http://www.phoronix.com/scan.php?page=article&item=ubuntu_32_pae&num=1

jadtech
April 30th, 2012, 07:14 PM
they dont if you have 64bit processor use the 64bit ISO

maxweld
April 30th, 2012, 07:26 PM
OK Thanks - I guess it is just a more foolproof option for newbies who may not be sure what they have under the hood.