"The good news for anyone thinking of buying the iPad 2 is that it did incredibly well in the test, outperforming all the rivals we have in the building to compare with it," Jenkins reported.

The resulting number is in milliseconds, so the lower the number, the faster the JavaScript is being processed. The results are shown in the accompanying bar graph or in the .

The rivals included the Google Nexus S smartphone, the Samsung Galaxy Tab, both running , and the Android browser. Nexus S with Android 2.3.2, took 6,128 milliseconds to run the benchmark; the Samsung device, 7,066; iPad 2 took 2,097 seconds.

The competitors also include the original iPad and an 4, both of which initially ran the current iOS 4.2 firmware. Jenkins later their firmware, to a beta version of iOS 4.3, and found the new software led to big performance gains for both devices in JavaScript processing. For example, the benchmark processing time on iPhone 4 dropped from 10,414 milliseconds to 4,151; on the original iPad, from 8,321 to 3,261.

Jenkins concluded that overall iPad 2 is about 1.5 times faster on the Web than the original tablet.