http://www2.webkit.org/perf/sunspider-0.9/sunspider.html

4652.8ms +/- 3.4% : Internet Explorer v8.0.6001.18702
3261.0ms +/- 0.6% : Opera v9.64
2671.0ms +/- 5.1% : Opera v10.0 beta 1
2508.6ms +/- 0.6% : Firefox v3.0.10
  954.8ms +/- 1.4% : Firefox v3.5
  924.8ms +/- 1.3% : Chrome v1.0.154.65
  569.6ms +/- 2.3% : Chrome v2.0.172.30
  528.0ms +/- 0.6% : Safari v4.0 (530.17)

Live in peace ;)