There are many different, relevant parameters: 1) Start-up time. 2) Performance with 25+ tabs open. 3) Performance on older devices. 4) Performance with a "

There are many different, relevant parameters: 1) Start-up time. 2) Performance with 25+ tabs open. 3) Performance on older devices. 4) Performance with a "basic" set of extensions. I don't really care about benchmarks these days; I am much more interested in whether a browser supports HTML5, WebGL, etc. I'm currently bummed that Opera 13 doesn't display shapefiles on GitHub. :(