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While 64-bit support is now considered common for both Intel and AMD processors, many Linux (as well as Windows) users are uncertain whether to use a 32-bit or 64-bit operating system with there being advantages for both paths. With this being the last Phoronix article for 2006, we decided to take this opportunity to look at the common question of whether to use 32-bit or 64-bit software. In this article, we will be comparing the i386 and x86_64 performance with Ubuntu 6.10 Edgy Eft and Ubuntu 7.04 Feisty Fawn Herd 1 to see how the numbers truly stack up.
There seems a lot of disagreement on this subject at present as is usual for benchmark brawls/err studies. Here is another set of benchmarks comparing Ubuntu 32bit and 64bit:
That study concludes there is a significant 64bit advantage particularly for cpu intensive apps....
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http://art-blog.no-ip.info/files/amd64vsi386.pdf
That study concludes there is a significant 64bit advantage particularly for cpu intensive apps....