Pretty much the ultimate test for any JS engine is this website. The stars above are pretty hardcore (there’s a lot of them, and the code isn’t optimized). Google Chrome is impressively fast (but so is Safari), but the rendering of the stars looks a bit odd. Are there PNG/opacity problems perhaps?
It is quick though. Another good test of the browser is my Easter card. http://www.kufluk.com/easter/
I’ve added a larger number of bunnies than usual, and the JS is fine! Sadly, the animated GIFs are causing trouble though. 🙁