Asp.Net vs php : Speed Comparison

Why is the myth that php is faster than Asp.Net so prevalent? Asp.Net is faster than php, here are the facts. So many times I have heard php pushers claim that php is so much faster than Asp.Net and that Asp.Net is clunky and slow. The most annoying part is that everything I have read (that is not factless opinion), and I mean everything, says that this is wrong; but for some reason, this myth is widely accepted. It has become a religious argument that ignores the facts...