[CEILINGSPY1]

someone told me that if I didn't opt for the Y560 (0646-5LU) I'd be sacrificing a lot in terms of connection speeds. Anyone know how that would affect me?

also, what is the different between the i3 and the i5 processor? I understand that 2.93GHz is a much higher frequency than 2.53GHz, but what do those numbers mean, and what is a real-world example of that speed difference?

Those numbers mean the speeds at which your cpu will compute. The higher the number, the faster and better your computer is. Also I would go for i5, since it has 4 cores yet i3 only has 2.