Compare Apple MB450LL/A 13.3 in. Mac Notebook to Apple MacBook Air (MB543LL/A) 13.3 in. Mac Notebook

MacBook Air is ultrathin, ultraportable, and ultra unlike anything else. But you dont lose inches and pounds overnight. Its the result of rethinking conventions. Of multiple wireless innovations. And of breakthrough design. With MacBook Air, mobile computing suddenly has a new standard.The glossy 13.3-inch, widescreen LED backlit MacBook Air display is the same viewable size as the screen on MacBook. The 1280-by-800 resolution gives you vibrant images and rich colors at full brightness the moment you open MacBook Air. So you get full-screen performance with all the benefits of a slim design. MacBook Air comes with a way-more-than-generous 2GB of RAM built in — ample memory for working with your favorite applications. The 80GB hard drive provides plenty of storage space. And you have the option to upgrade to a 64GB solid-state drive, which has no moving parts for enhanced durability. Less

Traditionally notebooks are made from multiple parts. Every MacBook starts its life as a single block of aluminum, which is precisely machined into the basic unibody design. Another pass and the unibody takes shape. Another, and the integrated keyboard emerges. When you pick up a MacBook you immediately notice the entire enclosure is thinner and lighter. And it feels strong and durable--perfect for life inside (and outside) your briefcase or backpack. Less