Ubuntu vs Ubuntu64

Tony Arnold tony.arnold at manchester.ac.uk
Mon Apr 24 18:13:33 UTC 2006



LinuxMurah.com wrote:

> I have AMD Sempron 2500, DDR 1 Gb. I had try both, Ubuntu and
> Ubuntu64, but I didn't feel any difference. Could somebody tell me
> when 64 bit processor run better than 32 bit? all looks same,
> meanwhile when I use Ubuntu64 Flash plugins for mozilla didn't work at
> all, according to wiki.ubuntu mozilla need '64-to-32bit apdapter'.
> Could anybody tell me what makes 64bit processor so special???

My guess is that you will only really notice the difference if you are
running code that heavily uses double precision floating point arithmetic.

The only other advantage I can see is that you can now have more than 2
terabytes of virtual and/or real memory, but not very likely on a
typical desktop system!

The downside of 64 bit systems is that executable tend to be larger than
their 32-bit equivalent, so more memory is usually necessary.

Regards,
Tony.
-- 
Tony Arnold, IT Security Coordinator, University of Manchester,
IT Services Division, Kilburn Building, Oxford Road, Manchester M13 9PL.
T: +44 (0)161 275 6093, F: +44 (0)870 136 1004, M: +44 (0)773 330 0039
E: tony.arnold at manchester.ac.uk, H: http://www.man.ac.uk/Tony.Arnold




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