Hello all. Looking to replace my MB from end 2008. My 2 options are 1. The non retina MBP 13" with 8 GB RAM with the 2.5 I5 2. 13 " MBA with 8GB RAM and the 1.3 I5 and 256 GB SSD Beside internet I use Aperture 2 a load. My concern is with the air that is had the faster SSD but the processor is about 50% less speedy then the one in the MBP? Any advise?