You are an idiot. That has nothing to do with your computer's address space. The VRAM on a graphics card is only accessable by the graphics card. You computer doesn't see that memory, so it can't address it.
The only way your graphics memory affects your total system memory is if it is integrated. A dedicated card has its own memory and its own memory controller completely independent of your CPU memory address controller.
I can't believe you people low ranked me for telling the truth. So you guys either need to pick up a book and read, or stop playing games on your piss weak ass laptops with your integrated Intel G3100 and upgrade to a real PC.
As you can clearly read, the CPU's memory controller is for address RAM memory, the only memory it has direct access to besides its caches. THe IOMMU handles the device addressing.
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Seriously, what happens with a 32-bit OS with this card??? The 4GB of VRAM would use up all the 32-bit addressable memory space !
You don't use a 32-bit OS for this type of data processing. You have to graduate to a 64-bit OS to run with the big boys...
You are an idiot. That has nothing to do with your computer's address space. The VRAM on a graphics card is only accessable by the graphics card. You computer doesn't see that memory, so it can't address it.
Actually, it is addressable by the computer and does count towards the 4GB memory limit.
The only way your graphics memory affects your total system memory is if it is integrated. A dedicated card has its own memory and its own memory controller completely independent of your CPU memory address controller.
I can't believe you people low ranked me for telling the truth. So you guys either need to pick up a book and read, or stop playing games on your piss weak ass laptops with your integrated Intel G3100 and upgrade to a real PC.
How your CPU sees your GPU's memory and an explaination of how it is actually addressed.
http://en.wikipedia.org/wiki/IOMMU
As you can clearly read, the CPU's memory controller is for address RAM memory, the only memory it has direct access to besides its caches. THe IOMMU handles the device addressing.