The 3820qm provides 400mhz higher clock and tubo boost clock, which is a whole lot, however I am using a 2630QM which has just 2.0GHz and yet in gaming I have never found the need for more, but I haven't played new games, you might need it, especially when it comes to video editing. In my opinions if this laptop is going to be used long term (like more than 3-4 years) thne those 83 euros are worth it.