A lot. It's much faster. Learn more at http://www.rubyraptor.org/ http://www.rubyraptor.org/ and http://www.rubyraptor.org/how-we-made-raptor-up-to-4x-faster-t

A lot. It's much faster. Learn more at http://www.rubyraptor.org/ http://www.rubyraptor.org/ and http://www.rubyraptor.org/how-we-made-raptor-up-to-4x-faster-than-unicorn-and-up-to-2x-faster-than-puma-torquebox/ http://www.rubyraptor.org/how-we-made-raptor-up-to-4x-faster... It has better tooling for helping you to identify and solve problems.