Quote:
Originally Posted by Richard Lowe
The memory limitations on 32bit Windows are 3.25Gb TOTAL addressable system memory (which includes stuff like your graphics card). So if you had a graphics card with 1Gb of VRAM that would be taken off the 3.25Gb total too, giving you a maximum RAM amount around 2.3Gb. Applications running on a 32bit OS can't see use more than 2Gb of RAM at once either, so no single program will use more than 2Gb.
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You all probably know this anyways, but under 32 bit Windows, you can "tune" your memory to in some small way help out the limitations Richard describes:
http://msdn.microsoft.com/en-us/libr...=vs.85%29.aspx
@Richard - doesnt the GPU address the video card memory directly when called from the likes of a game? i.e. while the 1gb video card in your example isnt adding anything because the system already has maxed physical memory; in a 3D game for example, this 1gb VRAM
can be utilised above the 4gb system ram as the GPU iterates through its own instructions from the application code. - i.e. nothing to do with Windows or the CPU. (
I think thats the big push that nVidia marketed when they released their first GPU's back 12 years ago or so)?
And if memory serves me even better, then the latest round of Adobe products (eg, Photoshop) are also GPU capable and can therefore make use of the additional VRAM?
08-02-2012
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