What's the difference in ASP.NET MVC of RedirectToRoute and RedirectToAction?

asp.net-mvc, asp.net-mvc-routing

Solution

Redirect to route looks up the route table thats defined in global.asax and redirect to action redirects you to a specified controller/action.

that's about it really

Problem

What's the difference in ASP.NET MVC of `RedirectToRoute` and `RedirectToAction`? It's not clear what the difference is to me.

Original source