I've made simple game (800x600px, scrolling, moving with WASD).
It's here: http://tecbug.pl/pub/c2/speed/
I've encountered weird speed differences on old computers in browsers other than Chrome.
Please launch my game, move around and send here:
- FPS that you get while screen-scrolling (upper left corner)
- your system spec
- your browser (with a browsers version).
Intel Core2 T7200 2.00GHz, 2GB RAM, NVIDIA Quadro FX 350M
Windows XP 32bit
Chrome 16.0.912.75: 59 FPS
Firefox 9.0.1: 11 FPS
Opera 11.60: 21 FPS
Maxthon v184.108.40.2060: 20 FPS