I do not wish to argue, but the ram required for a videocard is mapped by the videocard on the videocard and is not skimmed off the top of the os, that would be pointless, for instance, my two cards...

for whoever said something about the videocard sharing this memory, or skimming it off the top or whatever, thats not how it works, that ram is on the videocard itself... now that we have that out of...