

Boost Speed: 2.3 GHz (1.6 GHZ processor speed version) or 2.9 GHz (1.8 GHz processor speed version).Processor Speed: 1.6 GHz and optional (later standard) 1.8 GHz.MacBook Air 4,1 11-inch Core i5 1.8 (Mid-2011) is the build-to-order but later standard iteration of MacBook Air 4,1 Core i5 1.6 (Mid-2011) with top mobile Intel Sandy Bridge. Both the versions of the MacBook Air 4,1 lack Firewire, Ethernet (with an external adapter available for an extra cost), and optical audio in/out. Two USB 2.0 ports, analog audio out and Thunderbolt video\audio out with external display support (the resolution of the display supported is 2560 x 1600) sum up the connectivity options. This model has an inbuilt FaceTime video camera with 720p resolution and two stereo speakers placed under the keyboard for multimedia and AirPort Extreme (802.11a/b/g/n) port and Bluetooth 4.0 for communication. The widescreen TFT LED backlit active-matrix display has 1366 x 768 native resolution and a glossy surface.

It features 2/4 GB of RAM, a 128 GB /256 GB flash storage. MacBook Air Core i5 1.6 (11-inch, Mid 2011) is powered with a dual Core i7 (2677M) and Intel HD Graphics 3000 integrated graphics processor with 256 MB or 384 MB of shared DDR3 memory.

