The chart up top is pulled from our most recent speed tests, with Opera 10.5 pre-alpha results rolled in. It shows some, shall we say, notable improvement. The gHacks blog put 10.5 against Firefox 3.6 beta and Chrome's development build in the SunSpider and V8 tests and found that Opera either beat, or came very close to, Chrome, in those separate runs, and usually left Firefox in the dust. We'll have to put Opera 10.5 through its full paces when it's out of its very unstable build.
Opera 10.5 pre-alpha is a free download for Windows and Mac systems. Tell us if you think there's some real speed-ups in this build, and what else you like, in the comments.
Opera 10.5 pre-alpha for Labs [Opera via ]