HTML5 canvas performance test
smashcat.org
smashcat.org
http://news.ycombinator.com/item?id=2328010
Note that you are also using setInterval in this demo which is actually causing a 4-15ms delay between frames. Not a problem for Firefox/Chrome but I bet it will be the limiting factor for hardware acceleration.
See my comments here about the setInterval problem:
http://news.ycombinator.com/item?id=2327768
I changed this benchmark to also use setZeroTimeout and it ran slightly faster FPS on Chrome 11 (but Firefox was already maxed out).
I just installed IE9 and am kinda feeling it. Even though it completely stole Chrome's interface, it works.