This is a question I've actually had for a while, and can't seem to find a good answer through google searching.

I understand that a 32-bit OS will only handle 4gb (more accurately 3.2 - 3.4) of RAM, and that a 64-bit OS will handle, well, more.  My question is this: If you have 4gb of RAM on a 32 bit OS, and your GRAPHICS card has 1gb, or any amount for that matter, will the OS be ABLE to utilize the RAM on the graphics card?

I also understand there is a significant difference between RAM and VRAM but does the CPU handle both the RAM and VRAM or does the GPU handle the graphics card's RAM(VRAM), therefore relieveing it of a 32-bit os's limitations.

I hope this wasn't to confusing, but if need be I don't mind having to rethink and rephrase this question.

Thanks for the help.VRAM is handled by the Graphics card think of it like a little PC inside your PC that takes raw data from the computer and converts it to something more readable. (no one correct me on this cos I know its not quite as simple as that)

If you had a 32-bit (x86) sytem then your MACHINE would register:
3326Mb RAM
1024Mb VRAM

If you had a 64-bit (x64) then you would get the lot:
4032Mb RAM
1024Mb VRAM

Apperently though 64-bit computing is usless for gaming.Thanks for the help (and I understood your computer inside a computer comparison perfectly).

I've been wondering how that all WORKED out, thanks for clearing it up.