Will the sound processor in an iPad outperforms MacBook Pro's?
It's a Cirrus Logic audio codec  :

Source : 


http://www.techrepublic.com/blog/cracking-open/teardown-shows-retina-macbook-pro-is-nearly-impossible-to-upgrade-difficult-to-work-on/696   
http://www.techrepublic.com/photos/cracking-open-the-apple-macbook-pro-with-retina-display/6372862?seq=79


So I would say the iPad won't outperform the MacBook Pro.