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What is the difference between 32bit and 64 bit and which should I chose?

I read somewhere that Ubuntu 12.04 64-bit is recommended by Canonical.. but my machine is not AMD64.. So which one should I prefer? 64-bit or 32-bit?

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marked as duplicate by Jorge Castro, jrg Apr 18 '12 at 2:33

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

can you post here the results from cat /proc/cpuinfo –  gajdipajti Apr 16 '12 at 7:30
paste.ubuntu.com/932190 –  ShowSomeMercy Apr 16 '12 at 7:35

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up vote 1 down vote accepted

Your cpu is 32-bit. Use the 32-bit version.

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okayy.. thanks.. –  ShowSomeMercy Apr 16 '12 at 7:47

If you are not using a 64-bit machine then the i386 (32-bit) image is the one for you...

Also going by your answer you say it's not AMD64 (an actual AMD processor) which is fine, AMD64 images will run on 64-bit Intel processors as well...

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If you're running a 64-bit Intel processor then I would highly suggest using the AMD64 images(these will still work), as some applications are only available to run on 64bit machines. Oracle 11g for example.

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