I donít have an argument with what you are saying. Iím just taking issue with your blanket statement of ďthe one exceptionĒ because there are other models that Apple has that are less nimble than that 2012 model, and that it is not a modern computer. Iím still using my mid-2009 souped up MacBook Pro with El Capitan and it absolutely purrs. DrG > On Jan 13, 2016, at 1:08 PM, Arthur Gaer <[log in to unmask]> wrote: > > Finally, a Mac Air is optimized for size and weight, not performance. The direct comparison with the 13-inch MacBook Pro are the modern 13-inch MacBook Pro Retina models. And there've been lots of upgrades along the way. For example, the old model has a screen resolution of 1280x800 or 1,024,000 pixels. The current Retina model is 2880x1800 or 5,184,000 pixels in the same sized (though much more color accurate) screen. That's quite a difference--as is the much faster graphics processor used to manipulate all those pixels.