Lee Mathews over at Download Squad tested the new Opera 10.5 against Chrome 4 and Firefox 3.7 pre-alpha. The testing grounds was the V8 benchmark. You can try it yourself here.
The V8 benchmark is probably biased towards Chrome, but Opera 10.5 gives comparable performance even at this early stage. Firefox seems to be lagging behind by a huge margin.
Opera is not done with Carakan – they plan to optimize it for ARM processors, which should make Opera Mobile even faster. Since, there’s an ARM-based CPU in pretty much every smartphone, that’s great news.
Other additions to Opera 10.5 are a new graphics library for that can be hardware accelerated, like Mozilla and Microsoft want to do, an improved layout engine for better HTML5 support, better platform integration and so on.