I wrote a completely useless 3D effect using DOM manipulation some time ago (<a href="http://portfoli.no" rel="nofollow">http://portfoli.no</a>), and have been using it since to do my own personal benchmark of various browsers. Being horribly unoptimized, and probably riddled with flaws, it seems a fair middle ground for most JavaScripts out there.<p>FF3.6 is (obviously) by far outperformed by Chrome, but it seems to me that even 3.5x did a better job of running it. In either case, the 3.5-&#62;3.6 difference seems marginal for this one.