Do C# Generics Have a Performance Benefit?

Question

I have a number of data classes representing various entities.

Which is better: writing a generic class (say, to print or output XML) using generics and interfaces,

Answer 1

Generics are faster!

I also discovered that Tony Northrup wrote wrong things about performance of generics and non-generics in his book.

I wrote about this on my blog: http://andriybuday.blogspot.com/2010/01/generics-performance-vs-non-generics.html

Here is great article where author compares performance of generics and non-generics:

nayyeri.net/use-generics-to-improve-performance