http://shootout.alioth.debian.org/

These benchmarks show that Ruby 1.9 (MRI) is much faster than 1.8. In 
fact, it is even faster than Python (the closest competing* language). 
But keep in mind that dynamically-typed, everything-is-an-object 
languages will always come with performance penalties.

*Not that we're actually "competing"--we're all friends, helping 
eachother make great very-high-level languages with our respective 
preferred syntaxes and feature-sets. But Ruby is still way better. ;-)
-- 
Posted via http://www.ruby-forum.com/.