

- OPERA BROWSER FOR MAC 10 7 5 MAC OS X
- OPERA BROWSER FOR MAC 10 7 5 UPDATE
- OPERA BROWSER FOR MAC 10 7 5 PC
The benchmarks may weigh the results a little too heavily on regex performance, but from the looks of it, the WebKit team definitely has its work cut out for it to catch up on this particular optimization. Google's implementation provides the biggest boost to regexes that are iterated repeatedly over larger data sets-quite similar to those used in benchmarking. Regexes aren't necessarily that common on all websites, but are commonly used for form input validation. Our own Ryan Paul explained that V8's approach to regular expressions spends more time on regex compilation to extract faster performance. Optimizing regular expressions was something that the WebKit team had done two years ago to push the performance of earlier versions of its Nitro (née SquirrelFish Extreme) engine, but both Opera and especially Chrome have made significant improvements since then. Looking closer at the individual tests, Both Chrome and Opera performed far, far better on regular expressions tests than Safari. Safari was more than twice as fast as Firefox, but Opera was nearly 11 times faster than Safari, and Chrome was a whopping 23 times faster. The most surprising results, however, come from the Dromaeo JavaScript tests. On our Windows 7 rig we had a recent development build of Chrome (as opposed to the latest stable version), and we also ran the tests using IE8 and a developer preview of IE9.
OPERA BROWSER FOR MAC 10 7 5 PC
The tests were also run on Windows 7 on a 2.67 GHz Core 2 Duo PC with 4 GB of RAM and an ATI 4830 GPU.
OPERA BROWSER FOR MAC 10 7 5 MAC OS X
The tests were run on the latest stable versions of Safari, Chrome, Firefox, and Opera on Mac OS X 10.6.3 running on a 3.0GHz, 8-core Mac Pro with 10GB RAM and two ATI Radeon 2600XT GPUs. We also took a look at graphics acceleration performance using Microsoft's HTML5 " Flying Images" speed demo. Included in our tests are a number of JavaScript benchmarks, including the WebKit team's SunSpider, Google's V8 Benchmark, and Mozilla's Dromaeo. We decided to put those claims to the test, pitting Safari against leading browsers on both Mac OS X and Windows 7. "Safari continues to lead the pack in performance," Apple SVP of worldwide marketing, Phil Schiller, said in a statement.
OPERA BROWSER FOR MAC 10 7 5 UPDATE
Along with several new features-one of them somewhat controversial-the update was said to pack a number of performance improvements, including DNS pre-fetching and optimizations to Safari's Nitro JavaScript engine. Apple released the latest major version of its Web browser, Safari 5, earlier this week.
