Yes, dual-core means that it's two processor cores on ONE CPU die. However, the clock speeds DO NOT just add up like that, so you can't think that you have a 3.6Ghz dual-core. I kinda wish it was like that, but no. What dual-core does is make everything you do more efficient. You can multitask better and faster and even doing small single tasks makes it way faster because you have TWO cores processing everything, instead of having one single core.