Ubuntu 12.04 LTS: 32-bit vs. 64-bit Performance
Written by Michael Larabel in Operating Systems on 28 February 2012 at 02:00 AM EST. Page 2 of 3. 48 Comments.
It should be to no surprise, for most computational workloads the 64-bit version of Ubuntu 12.04 LTS is much faster than the 32-bit and 32-bit kernel with PAE support versions.