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

I'm not sure as to what architecture of ubuntu go for... either 32 bit or 64 bit. I'm not sure if to go with the 64 bit since I have 12gb of RAM, so that with 64bit it will cover the 12gb.

Also I would like to know what are the disadvantages of each of them, either 32 or 64. Thanks in advance! :)

Community
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codeninja
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2 Answers2

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I prefer x86_64. No workarounds to support +4gb of RAM. With 64-bit it is possible to give more than 2GB of RAM to a single process(might be useful in virtualization). And now most of software support 64-bit architecture, unlike it was a couple of years ago. And the performance is better. If you use native 64-bit software, it is sometimes significantly better. http://www.phoronix.com/scan.php?page=article&item=ubuntu_1210_3264

123RaZoR321
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Advantages and disadvantages of 32-bit:

  • All software supported
  • Better for gaming because game only use not more than 1GB memory
  • Only cover 3.2 GB (But on PAE cover 64 GB)

Advantages and disadvantages of 64-bit:

  • Use 64-bit software, it is difficult to search 64-bit software.
  • Cover more than 4GB memory
  • Better for virtualization (if you need)
  • Use more memory than the 32-bit

I prefer 32-bit to 64-bit because 32-bit application / software is wide-supported. Then on PAE, Ubuntu can cover all of your memory.

lambda23
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