Read the wikipedia entry again. It has the word 'may' in it. Just because it's capable of different things doesn't mean it is used for those things.
I really don't want to bring this down to the personal insult level, but seriously, RESEARCH before posting nonsense. You're more stubborn than talking to a brick wall. There's nothing bad about being wrong about something, buts it's bad when you continue to try to spread misinformation even though many are weighing in.
I doubt you even googled VRAM usage, since I found many results that I looked at before posting that explained what VRAM is used for these days.