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Fedora 18: 32 bits or 64 bits for my acer aspire 5715Z

asked 2013-02-22 13:57:17 -0500

tsiiry gravatar image

Hi,

Now, i use Fedora-15 32 bits on my laptop acer aspire 5715Z. I have any problems with it but i like to change my OS to Fedora-18 Gnome.

Can you help me to choose between 32 bits and 64 bits architecture.

Best regard,

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answered 2013-02-22 14:20:38 -0500

Aleksandar Kostadinov gravatar image

Some programs use more memory on 64bit. Some broken non-free software only supports 32bit (e.g. skype). On the other hand 64bit is more secure, supports more memory and faster in some cases. It's subjective but with <=2GB of RAM I'd choose 32 bit. 3-4 is gray zone. Over 4 you're better with the 64bit version except if your particular workload is better with the other one.

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Not sure about the security part. I think they'll be equally secure. If you have 64 bit hardware, why not use software that takes advantage of it? Also, a 64bit OS can run 32 bit software, so you don't really lose out. I use a 64bit Fedora and skype and the rest works just fine.

FranciscoD_ gravatar imageFranciscoD_ ( 2013-02-22 17:10:14 -0500 )edit

@FranciscoD_ wrt security there are some compiler magic that can't be done on 32bit. As I said, many programs run fine with 64bit, but on some (like most interpreted languages and older java) have significant memory overhead. Wrt skype, installing on a 64 bit system it pulls over more than 100MB of 32bit dependencies (because it is actually 32 bit). That may or may not be a problem for the specific user. But it has to be considered. Some workloads are somehow faster on 64bit due to architecture optimizations.

Aleksandar Kostadinov gravatar imageAleksandar Kostadinov ( 2013-02-24 13:22:52 -0500 )edit

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Asked: 2013-02-22 13:57:17 -0500

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Last updated: Feb 22 '13