So for example, if I have a 7000 rpm 2.5 inch drive and a 3.5 inch 7000 rpm drive. And for this example they are both the same size From what I've read the 2.5 inch should be faster, due to the density of the files or whatever. But from these forums everyone is saying that the 2.5 inch drive is much slower. Why is that; when they are both running the same speed and the 2.5 inch should have an edge due to the density?