I was looking on the apple website and found some subtle differences when they listed the specs for the MB and MBP. Maybe they are the same and the people at apple just wrote them differently? Hopefully you guys came help me out! MB: 2GB DDR3 memory MBP: 4GB I know the difference between 2 and 4 GB. But what is this DDR3? Is that type of memory the same in the MBP? If not, how are they different? MB: NVIDIA GeForce 9400M graphics MBP: NVIDIA GeForce 320M graphics I know they're different graphic cards. Which one is better? I would assume the MBP since they are known for the better graphics but the number is lower? On different MPB versions: -Intel Core 2 Duo v Intel Core i5 v Intel Core i7. I know they are different processors, but how big is the difference? When is the difference noticeable? -Intel HD Graphics on the bigger screens. Graphics in HD? And finally, the different GHz processors. How big of a difference are .2GHz (2.4 v 2.66)? When is it noticable? Sorry for my stupid questions and thanks for answering!