Dromaeo results http://dromaeo.com/?id=20571
Check it out. A lot faster than FF and Safari. I am not counting IE here...IE is outdated with the launch of Chrome.
On a P4/2.4GHz with 768 MB of RAM running XP (spare pc).
JavaScript Performance Tests - http://dromaeo.com/
Google Chrome - 705.00ms (Total),
Firefox 3 - 3303.40ms (Total),
Safari 3.1.2 - 3888.20ms (Total),
IE7 - Crashed the browser on "base 64 Encoding and Decoding v122" test. It was also very slow on the 1st 2 tests.
fwiw, WebKit (r36053) nightly ran the tests in 794.80ms and the latest FF3.1 nightly Gecko/20080903051823) was nearly double Chrome, running at 1343.40ms