You hear this when people praise node.js, and it might be true for all I know, but I have yet to see a concrete example comparing node.js code to the same code

You hear this when people praise node.js, and it might be true for all I know, but I have yet to see a concrete example comparing node.js code to the same code in another framework/language. Would be very interesting and help non-node.js users understand the benefits.