and a quad core has 4 processors. Does that mean that a quad core is twice as fast a a core 2 duo? Do you just multiply the speed, ie a quad core at 2.5Ghz is the equivalent of a single core running at 10Ghz?
So if you see a pc listed as being dual core at 2.5Ghz does that mean that it's running stuff at 5Ghz effectively?
I've never been quite sure how these things work.
Also how much better is an i7? Are they revolutionary? Or just a tad better and possibly overpriced as they're new?