Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Should I use the 64bit version or the 32bit. Will it satisfy me coming from a Windows system background. Sounds like a great alternative?

Just wondering if anybody has done similar?

share|improve this question

Short answer : Yes.

If you want a longer explanation and some documentation about the topic, see ubuntu-64-bit-vs-32-bit.

share|improve this answer

Yes. A better question these days might be "why not use 64-bit?".

For one thing, to my understanding, you'd only be able to use 4 GB of the RAM with a 32-bit OS.

I've personally been using 64-bit Ubuntu installations for the last few years for my work machine, and haven't had issues with that.

share|improve this answer
"'d only be able to use 4 GB of the RAM..." Well, if your kernel supports PAE, you could overcome this limitation. – Nathan Osman Oct 2 '11 at 19:34
well, 64bit isnt only about memory, as one can see here:… – Denwerko Oct 2 '11 at 21:32

You can use 64-bit system if you want (but not forced). You shouldn't if you prefer 32-bit. Both are fits well for most of desktop system.

Why you can use 32-bit system

  • Using PAE kernel you can run 32-bit linux system with up to 64GB RAM. PAE allows to access a physical address space more than 4GB but only 4GB per process (AFAIK).
  • Almost all known application were developed for 32-bit systems. So you will not have "how can I run my flash player on 64-bit system" issues

Why you may want to use 64-bit system

  • Applications developed with 64-bit in mind may operate faster
  • You have to use heavy apps required more than 4GB memory per process (running large databases etc.)
share|improve this answer
Flash is no longer a problem on 64-bit machines. You can still run 32-bit binaries on 64-bit systems, but it's slightly harder than on a 32-bit system, so you should pick a 32-bit system only if you have to run lots of legacy 32-bit only apps. – Krzysztof Kosiński Oct 3 '11 at 1:35

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.