Are doubles faster than floats in C#?

Question

I\'m writing an application which reads large arrays of floats and performs some simple operations with them. I\'m using floats, because I thought it\'d be faster than doubl

Answer 1

I just read the "Microsoft .NET Framework-Application Development Foundation 2nd" for the MCTS exam 70-536 and there is a note on page 4 (chapter 1):

NOTE Optimizing performance with built-in types
The runtime optimizes the performance of 32-bit integer types (Int32 and UInt32), so use those types for counters and other frequently accessed integral variables. For floating-point operations, Double is the most efficient type because those operations are optimized by hardware.

It's written by Tony Northrup. I don't know if he's an authority or not, but I would expect that the official book for the .NET exam should carry some weight. It is of course not a gaurantee. I just thought I'd add it to this discussion.