Hardware Acceleration Performance
Facebook JSGameBench v0.4.1
JSGameBench measures both native HTML5 hardware acceleration as well as WebGL.
Safari takes the lead in overall hardware acceleration with Firefox being the only other reasonable option on OS X. Chrome places a very distant third, followed by an equally meager score for fourth-place finisher Opera.
On Windows 7, Chrome takes the lead, doubling Safari's winning OS X score. Firefox is again the second-best choice in overall hardware acceleration, followed by Internet Explorer in third, and Opera again in last place.
HTML5 Hardware Acceleration
The HTML5 Hardware Acceleration composite is the geometric mean of the average WebVizBench and Psychedelic Browsing scores.
Safari is the big winner on Mountain Lion, followed by Chrome in second place. While Firefox technically places third, it and Opera are equally poor for HTML5 hardware acceleration on OS X.
On Windows 7, Firefox regains its lead over arch-rival Internet Explorer. Chrome manages a respectable third-place finish, followed far behind by Opera in last place.
The charts below are for Psychedelic Browsing and WebVizBench.
Psychedelic Browsing obliterates Opera on both OSes and handicaps Firefox for OS X versus WebVizBench, Chrome 21 comes out of nowhere to claim victory in WebVizBench on both operating systems. A slight lead by Firefox 15 over IE9 in WebVizBench is what allows Mozilla to regain the HTML5 hardware acceleration crown on Windows 7.
Chrome and Firefox remain the only stable browsers with default WebGL implementations on either operating system.
The WebGL composite is the geometric mean of the average results from Mozilla's WebGL FishIE Tank and WebGL Solar System from Chrome Experiments.
Firefox beats Chrome on OS X Mountain Lion by just seven frames per second, 24 to 17. Firefox 15 takes the lead on Windows 7 with 48 FPS, followed by Chrome 21 with 31 FPS.
The charts below contain the average results for WebGL FishIE Tank and WebGL Solar System.
Both Google and Mozilla do quite well in the WebGL FishIE Tank benchmark, but Chrome has a clear disadvantage in the WebGL Solar System test.