You might find this interesting: http://programmingzen.com/2010/07/19/the-great-ruby-shootout-july-2010/ http://programmingzen.com/2010/07/19/the-great-ruby-sh

You might find this interesting: http://programmingzen.com/2010/07/19/the-great-ruby-shootout-july-2010/ http://programmingzen.com/2010/07/19/the-great-ruby-shootout... It shows 1.9.2 to be a bit faster most of the time, and to have a smaller footprint. Still, Rubinius could be the better choice in some cases. The best thing is to run your own perf tests specific to your application, and rvm makes that head to head comparison easier to carry out.