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I just realized, and I mean it literally just a few minutes ago, that my processor Intel T5870 supports 64-bit. I have had this laptop (ThinkPad R61i) for two years mainly running Ubuntu 32-bit. So far I haven't had a problem with it until last week when my OS (12.04) crashed due to a bad software update (my guess).

Should I take advantage of my processor's capability and upgrade to 64-bit (and I know I would have to reformat my laptop completely for it) or just let it run with 32-bit without my laptop's performance suffering for using a higher end OS?

I have a 3.9GB memory, integrated graphics, and 130GB hard drive.

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you should go for 64 bit os – One Zero Jun 18 '12 at 6:14
up vote 1 down vote accepted

Yes, you should! Using the amd64 edition of Ubuntu will allow you to use the full bandwidth of your processor and system bus. If you need to run 32-bit software on a 64-bit install of Ubuntu, things are easier now that 12.04 supports multi-arch.

Good luck!

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Yes. 64-bit is greater than 32-bit on your computer. It is new enough.

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Thank you, Linux Distance. But is my 3.9gb enough to use a 64-bit without hassle? – onvas Jun 18 '12 at 6:16
Yes, of course. Windows 7 64-bit cannot run with <2GB RAM, but Ubuntu can :) – ThePiercingPrince Jun 18 '12 at 8:04

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