The faster graphics enjoyed by the Haswell processors meant that in our Call of Duty 4 test, the 2013 13-inch MacBook Air ran the game at 67.8 frames per second, compared to 59.5fps for the 13-inch, 1.8GHz dual core Intel Core i5 model from 2012. ITunes encoding (USB SuperDrive): 452 secondsĪlthough the processors have a slower clock speed than the previous generation, across-the-board performance improvements mostly make up the difference. At last, you can use your notebook all day long on a single charge. But with the Haswell processors in place, it's absolutely stunning. Since switching to solid state storage off the shelf with the late 2010 update, the MacBook Air has been known for its good battery life. That's significantly better than the 11-inch MacBook Air's 7 hours 15 minutes, and a substantial improvement over the 2012 MacBook Air's 5.5 hours. In our test, in which we streamed the live BBC News channel feed on iPlayer over a wireless network, the laptop lasted for nine hours. The new Haswell processors use very little power, giving the 2013 13-inch MacBook Air and absolutely stunning battery life. Perhaps it would've taken too great a toll on the battery life. Yet we didn't get one on the 2013 MacBook Airs, even as a custom option for those ordering on the Apple online store. Packing in such a high resolution it's impossible to distinguish between individual pixels at a normal viewing distance, Retina screens proved extremely popular on recent MacBook Pro and iPad models. Interestingly, the oft-predicted Retina screen never emerged.
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