You're therefore confined to a 128GB SSD, the largest size Apple currently sells in the 11in Air, which is very cramped compared to commonly available 500GB and 750GB hard disks. Although 128GB should be enough for office documents, it won't be large enough for storing lots of applications as well as a large library of media files, virtual machines or a Windows Boot Camp installation. This is all the more galling since the SSD probably accounts for much of the Air's high price.
Although cramped, the SSD does speed up common disk-based tasks. Resuming from hibernation, which can take at least 40 seconds to a minute on a 13in MacBook Pro with a 5,400rpm hard disk, is nearly instantaneous on the Air. Rebooting into Windows (when it's installed using Apple's Boot Camp utility) which can take a minute or two on the Pro, took just 45 seconds on the Air. Because of the SSD, the Air feels much more responsive than its relatively slow processor and meagre amount of RAM would lead you to believe.
Instead of a new Core i3 or i5 low voltage processor, the 13in Air uses a comparatively old 1.4GHz Core 2 Duo SU9400 ultra low voltage processor. Although not as fast as the newer Core i3 and i5 chips, it's still more than fast enough for most tasks and is much, much faster than any netbook. Whereas Intel Atom-based netbooks can easily take several hours or even a day to complete our demanding suite of Windows application benchmarks, the Air's 1.4GHz SU9400 processor completed them in an hour.
Even so, it managed a low overall score of 44 in our Windows benchmarks which we suspect is due to both the slow clock speed of the processor and the meager 2GB of RAM fitted. It's possible to fit a slightly faster 1.6GHz processor, but this costs 80 extra from Apple. Memory isn't user upgradeable, so if you want to fit the 4GB maximum, which we strongly recommend you do, you'll have to order it pre-fitted from Apple adding another 80 on top. 4GB should really be fitted as standard in a laptop at this price.
