The type of GPU memory has nothing to do with the requirements on the rest of your system. Unless you have a weak a$$ PSU that card will be fine for your system. BTW, what is your budget? You could possibly do a bit better for the money you're spending on that card. In that price range you should be looking at cards with 256MB of RAM as the extra money spent on the extra memory will amount to maybe a couple of FPS.
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