The processor is only a dual core, which will be outdated within a few years, while quad cores and above will be "good" for much longer. Yes a GT 220 is better then a 6150. Dell does sell computers with more powerful graphics cards, but only with select models. As I said before, you would be MUCH better off building your own. If you REALLY can't, don;t buy that Dell computer with a graphics card, you could save a lot of money and get a much better card by buying your own from Tiger Direct or newegg.