I agree with superninja12, high end i3's are surprisingly capable given their price but they do have their limits. The i3 runs software like a quad core because it has 4 "queue's" so it speak but still runs them through two cores. Although they are very good for their price, some games can really push them (but not max out so still good). I have an i3 4160 and my impression of the i3's (but not 6100 because I haven't got one, but I would presume it would be the same), is that they become outdated relatively quickly because they don't have as much excess processing power compared to an i5. If you go for an i3, expect to have to replace it with an i5 within a few years if you want to keep up with newer AAA games or detailed strategy games.