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64 bit processor, 32 bit OS?

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#1 second to none

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Posted 20 December 2008 - 05:57 PM

This is probably an ignorant question, but: I've been using my laptop more frequently lately, and today I noticed that I'm running the 32-bit version of Home Premium, on the AMD Turion 64x2 (i.e. 64 bit) processor. If it matters I have 2gbs of RAM, and the processor runs at 1.9 Ghz.

So, would I benefit hugely from upgrading to a 64 bit OS, or does it not really matter? Am I losing speed or efficiency because of the discrepancy between OS and processor? Thanks in advance.

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#2 DJBPace07


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Posted 20 December 2008 - 08:43 PM

No. Although 64-bit has faster instruction sets and allows for 4GB or more of memory to be used, PC's with lower RAM sizes would suffer a speed reduction due to the slightly increased size of items in memory. 64-bit processors are able to run 32-bit software just fine.



#3 usasma


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Posted 21 December 2008 - 11:08 AM

From my experience (and from what I've read) the break-even point between 32 and 64 bit is usually 4gB of RAM. If your system will handle more than 4gB of RAM you likely won't see any dramatic performance increases - but you'll be able to leave more applications open at one time without experiencing lag due to the open programs.

I've got 8 gB of RAM on my x64 Vista - and I can play games with no lag while leaving 8 or 9 programs open in my Task Bar, 18 icons in my System Tray, 22 tabs open in Firefox and 8 tabs open in Internet Explorer.

Edited by usasma, 21 December 2008 - 11:10 AM.
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