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Windows 32bit vs 64bit - Page 2

post #11 of 21
Quote:
Originally Posted by damian5000 View Post

what i mean is the actual physical ram available is 2.7gb TOTAL with 32bit.... the missing 1.3 i'm assuming is a GB to integrated GPU address space and the rest being overhead.... if upping to 64 bit, will the amount of available change...?

32bit windows will i think allow upto 3.5GB, some platforms its lower without the latest BIOS..
anyway, your i5 450m has a 64bit instruction set and bus widths. get a 64 bit OS to fully utilise your system ( i beleve a laqptop) and your RAM.. thumb.gif
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post #12 of 21
RAM limitation explained, its all about the math. biggrin.gif
http://www.zdnet.com/blog/hardware/clearing-up-the-3264-bit-memory-limit-confusion/3124
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post #13 of 21
Thread Starter 
so i will see more total available as I believe the integrated i5 is taking up 1gb of addressable...leaving 1gb physical RAM unused...

will report back
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post #14 of 21
Thread Starter 
ok... installed 64 bit...and not only has total physical increased from 2.7 to 3.8, my igp is now addressing more space as well (1.6)... overall everything seems much faster, but i'm not sure how much that can be attributed to a fresh install... will see after a month or so once she's been loaded up...
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post #15 of 21
Don't worry about your RAM much seriously. A lot of OEM system today still sell Win7 64bit with 4GB RAM by default.

Just to give you an idea: http://www.dell.com/us/p/inspiron-620/pd (tech spec)
 
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post #16 of 21
Quote:
Originally Posted by dmanstasiu View Post

It allows 4GB, except for Windows 7 starter which allows 2GB.
http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx#physical_memory_limits_windows_7

You won't be able to utilize all of it with 32-bit windows because of the address that must be reserved for hardware.
Quote:
Originally Posted by damian5000 View Post

what i mean is the actual physical ram available is 2.7gb TOTAL with 32bit.... the missing 1.3 i'm assuming is a GB to integrated GPU address space and the rest being overhead.... if upping to 64 bit, will the amount of available change...?

If you have memory dedicated to the IGP, that will not be freed up, but any hardware address occupied by dedicated GPU memory will.
Quote:
Originally Posted by damian5000 View Post

ok... installed 64 bit...and not only has total physical increased from 2.7 to 3.8

Sounds about right, the small amount you are still missing is probably physically reserved by the IGP.
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post #17 of 21
Thread Starter 
Quote:
Originally Posted by djriful View Post

Don't worry about your RAM much seriously. A lot of OEM system today still sell Win7 64bit with 4GB RAM by default.
Just to give you an idea: http://www.dell.com/us/p/inspiron-620/pd (tech spec)

did you mean to link to a $300 dell?

that's all i have is 4gb...what was happening was 1gb of address space was going to the igp, thus i effectively had 2.7gb with win32... 1gb address space to igp + 300mb hw overhead......
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post #18 of 21
I wasn't trying to compare whatever to Dell, I'm saying Win7 64bit runs fine with 4GB RAM either way they run on integrated GPU (iGPU).
 
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post #19 of 21
I have friend who is also a tech and swears 64 bit is faster usaly he is the guy to say that kind of stuff is poppy **** so i was surprised to see him be so sure of something like 64bit vs 32bit. i think there are various optimizations under the hood.
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post #20 of 21
The biggest factor is the fact that 32-bit is memory-limited. It's around 3.5GB-4GB depending on how you count it.
64-bit can handle up to 192GB IIRC
Edited by dmanstasiu - 3/6/12 at 1:14pm
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