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32 bit memory restrictions on a 64bit system?

post #1 of 18
Thread Starter 
So I have the 64bit version of Windows 7, but several or my progs are 32 bit. I have 8GB of RAM and if I'm correct 32bit progs only use about 4GB. So is this true? Will the 32bit progs on my 64bit system not be able to access more than 4GB?

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post #2 of 18
The programs have nothing to do with how much RAM your computer accesses. As long as you're OS is 64bit, you'll access the full 8gb of RAM.
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post #3 of 18
no, but as far as im aware, theres no programs that will use over 4gb of ram unless your using some type of graphical design work, IE Photoshop/After Effects. If you have CS5 32 Bit, then they can only use 3.5gb
post #4 of 18
i believe unless the program is 64 bit or large address aware they can only access 2GB
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post #5 of 18
Thread Starter 
I'm using tons of Adobe programs like After FX and Photoshop...
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post #6 of 18
Quote:
Originally Posted by Blindsay View Post
i believe unless the program is 64 bit or large address aware they can only access 2GB
32-bit programs *should* be able to have up to 32-bits of RAM (4GB) allocated to them.
EDIT--Learning things all the time. Blindsay is right--I wasn't aware that Windows imposes a limitation beyond 32-bit.

Quote:
Originally Posted by HOTDOGS View Post
I'm using tons of Adobe programs like After FX and Photoshop...
How often do your jobs/applications end up taking 4GB of physical memory while you're actively working on them? If they don't come close, you don't need to worry about it.
Edited by guyladouche - 6/21/11 at 11:39am
    
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post #7 of 18
Quote:
Originally Posted by guyladouche View Post
32-bit programs *should* be able to have up to 32-bits of RAM (4GB) allocated to them.



How often do your jobs/applications end up taking 4GB of physical memory while you're actively working on them? If they don't come close, you don't need to worry about it.
They should but Windows limits this. It's limited to 2G per application, has to do with how they designed PAE for Windows.

Go 64bit, if not for the memory use for the security you get with the locked kernel and drivers. It's a huge improvement over 32bit security.
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post #8 of 18
Adobe has 64 bit versions of their software.. what versions are you using? I know CS5 has at least 64 bit photoshop/premiere (I know because I often use them)
post #9 of 18
Thread Starter 
I'm simply asking in the even that they need more than 4gb, will they be able to access it as a 32bit prog on a 64bit system.
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post #10 of 18
A 32-bit program, even one running in a 64-bit environment, will not be able to access more than 3.5GB of RAM. So if you use intensive programs that might want access to more than that, you should consider purchasing 64-bit versions of them.
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