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 have always thought that the processors were optimized or the same regardless of float or double. Searching for optimizations on my intensive computations (lots of gets from a matrix, comparisons of two values) I found out that floats run about 13% faster.

This surprised me, but I guess it is due to the nature of my problem. I don't do casts between float and double in the core of the operations, and my computations are mainly adding, multiplying and subtracting.

This is on my i7 920, running a 64-bit operating system.