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#1 2009-02-07 1:04 pm

barrfid_od
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From: Luverne, MN
Registered: 2006-04-24
Posts: 802
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32 and 64bit question

So if you have an OS on a machine with only 2 Gigs of ram and is 64 bit, is there going to be any improvement in general computing performance?


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#2 2009-02-07 2:14 pm

wellfleation
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From: Metheun, Mass.
Registered: 2001-11-13
Posts: 8679

Re: 32 and 64bit question

Its dependent as to whether the OS is 64-bit, whether your machine supports it, and the apps running. (Will they be 64-bit as well?)


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#3 2009-02-07 8:19 pm

Macskeeball
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Registered: 2002-02-07
Posts: 8014
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Re: 32 and 64bit question

As far as I know, 64 bit doesn't improve performance on G5s, but it does on Intel due to aditional registers being used. I seem to remember mo'ron posting something to that affect a few years ago, at any rate.


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#4 2009-02-08 1:01 am

Bat
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From: Björk, Björk
Registered: 2001-05-14
Posts: 28541

Re: 32 and 64bit question

I thought it was speculation within the last month or so.


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#5 2009-02-08 9:49 am

barrfid_od
pro slacker
From: Luverne, MN
Registered: 2006-04-24
Posts: 802
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Re: 32 and 64bit question

wellfleation wrote:

Its dependent as to whether the OS is 64-bit, whether your machine supports it, and the apps running. (Will they be 64-bit as well?)

So the apps being 32 bit mostly their won't be any increase. Makes sense. Even if the app is 64-bit and there is only 2 gigs of ram would it only be like running on 32-bit


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#6 2009-02-08 12:15 pm

avkills
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Registered: 2001-05-09
Posts: 7103

Re: 32 and 64bit question

Depends on what you're doing.  If you're doing double precision math then 64bit is faster since it can store the whole thing and compute at once.

If you only have 2Gb of RAM, then 64bit isn't going to benefit you a whole lot since 32bit apps can still address all the memory you have.

-mark

Last edited by avkills (2009-02-08 12:15 pm)

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