Advanced Micro Devices Inc (AMD)

[wbmw]

Constantine, the system has some arbitrary aspects, but it's not hard to figure out. 300 series -> 500 series is moving from Celeron to Pentium, so the added value is in performance. You can't compare the digits, but you know that 500s are generally faster than 300s. The numbers inside each family tend to equate to similar performance, but only within the family, not across both families. This does not seem to be the case with the 500 series -> 700 series. The inner digits to seem to match one another relatively well, but the added value comes in the form of lower power (i.e. mobility). Thus, a 745 may not have stronger performance over a 550, but it might still be worth paying more for (it's the luxury model . It also makes it easier for people to choose 530 over 330. The 530 will be more bang for the buck, while the 330 is the entry level offering.