Rise of mobile processors:
http://www.pcpro.co.uk/features/378712/rise-of-the-mobile-processors/3

iPhone 5S review
http://www.anandtech.com/show/7335/the-iphone-5s-review

iPhone 5S 64bit processor – what does it  mean
http://www.digitaltrends.com/mobile/iphone-5s-64-bit-a7-processor/

Making sense of smartphones processors:
http://www.techautos.com/2010/03/14/smartphone-processor-guide/

Comparing CPU Power Between Smartphones and Notebooks with SunSpider
http://mobilesociety.typepad.com/mobile_life/2012/11/comparing-cpu-power-between-smartphones-and-notebooks-with-sunspider.html