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

I've just clean-installed 12.10 64bit and i noticed an increase in memory usage. I used 12.04 32bit and was running about ~400mb on startup(gnome3 no effects) + firefox, now the machine uses about ~600 mb.

share|improve this question
up vote 4 down vote accepted

64-bit OS and applications do require more RAM than 32-bit, see this answer for details:

While it is possible that the newer Ubuntu also requires more (or less) RAM than the older one, the difference between 400Mb and 600Mb fits well within the difference between 32 and 64 bit OS memory consumption.

share|improve this answer

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.