Originally Posted by
nkedel
When the machine is new (and if by last-generation, you're talking about Haswell) , it's both use-dependent and patience-dependent
-- if it follows the pattern of prior ULV processors, the MBP processor will feel fresh several years longer than the MBA.
It does depend a bit on whether the trend towards ever-bulkier apps and javascript on web sites continues. The push on the PC side for ever-cheaper machines, and the push on both PC and Mac for longer battery life does discourage that somewhat.
Yes, the MBP is current generation. I just can't tell a difference in what I do. I don't think specs are meaningful if they don't impact application. The Air does what I use it for fast. I can't tell the difference between 0.05 and 0.08 seconds or whatever. I love the screen on the New MBP though.