Hp elitebook 8440p Core i5
64bit Operating system
250GB Hard Drive
RW CD Drive
If you want a plain and simple answer, then generally speaking, Core i7s are better than Core i5s, which are in turn better than Core i3s. Nope, Core i7 does not have seven cores nor does Core i3 have three cores. The numbers are simply indicative of their relative processing powers.
Intel Core i3, Core i5, and Core i7 CPUs have been around for a few years now, but some buyers still get stumped whenever they attempt to build their own systems and are forced to choose among the three. With the more recent Haswell (fourth generation ) architecture now on store shelves, we expect the latest wave of buyers to ask the same kind of questions.