The description is obviously a generic V5 description, not tailored to each model. Although the description states 3rd generation, all other sites refer to the V5-473 having the i5-4200U, which is 4th generation. There's lots of other errors in the description - for example, the description refers to numeric keypad, but from the product photos at the top, the 14-inch version doesn't have a numeric keypad. However, I can't find any definitive answer, so you take your chances...
The one I received when I ordered from this page was i5-4200U 4th generation
It states in the description of the product 3rd gen intel processor
answered on 24 Mar 2014