ViewBag vs ViewData performance difference in MVC?

Question

I know that ViewData and ViewBag both use the same backing data and that neither are as good as using strongly typed models in most cases. However when choosing between the two

Answer 1

I haven't done any test but my gut feel is that in real world scenarios the difference is just negligible. You will probably access it a few times on each page and a few CPU cycles won't make any difference. One can find bigger performance improvements in other places.