Suvidha Shashikumar - Click for blog homepageHere is a great tool which compares features of NAV 2013 with older versions of NAV.

http://www.microsoft.com/dynamics/upgrade-compare/nav/default.html

Learn about the enhancements in Microsoft Dynamics NAV 2013 and know how customers can increase productivity, gain greater control and insight by upgrading to Dynamics NAV 2013.

Thanks to Suvidha for providing this article in this blog.