I am confused, should i buy GTX 960 2gb or 4gb. See i have money to buy 2gb one right now but if i wait till November i will have the money to buy 4gb one but have to wait till november. Should i wait till November for 4gb one or i should buy 2gb one right now. Will 2gb one be able to serve my gaming need at 1080p for next 4 years or not.