The Apple MacBook Air "Core i5" Turbo Boost 2.2Ghz 13.3" (Thunderbolt) features a 32-nm "Sandy Bridge" 2.2 GHz Intel "Core i5" processor (5467M) with two independent processor "cores" on a single chip, a 3 MB shared level 3 cache, 4GB of RAM onboard 1333 MHz DDR3 SDRAM, 256GB of flash storage ( Solid State Hard Drive ) SSD , and an Intel HD Graphics 6000 graphics processor .
This system also supports "Turbo Boost 2.0" -- which "automatically increases the speed of the active cores" to improve performance when needed (up to 2.3 GHz for this model) -- and "Hyper Threading" -- which allows the system to recognize four total "cores" or "threads" (two real and two virtual).
This all is packed in a razor thin (0.11-0.68 inch), 2.3 pounds, aluminum case with an integrated "FaceTime" video camera, a backlit full-size keyboard and a 13.3" widescreen TFT LED backlit active-matrix "glossy" display (1400x900 native resolution).
Connectivity includes 802.11a/b/g/n Wi-Fi, Bluetooth 4.0, dual USB 2.0 ports and analog audio out as well as a new "Thunderbolt" port that is backward compatible with Mini DisplayPort and likewise supports an external display at 2560x1600 and passes an audio signal as well. Thunderbolt also supports other peripherals that use the Thunderbolt standard which provides up to 10 Gbps of bandwidth in both directions.
Compared to its predecessor, this model has the aforementioned Thunderbolt port a faster processor, architecture, and RAM as well as improved wireless capabilities.