Dart VM is now 50% faster than the V8 in two
Octane tests:
Richards and
DeltaBlue .

Information will now be available at
dartlang.org/performance/ . This is a new section of the site designed to keep track of the latest current performance information Dart. Comparisons of V8, Dart VM and dart2js will be for each new version.

Tests are conducted under Linux x86-32 in compliance with the
Dart benchmark harness standard. Over time, new tracking criteria will be added. Of course, performance testing is a subtle science, so a
brief Dart benchmarking
guide was published.