Medialets today released the results of JavaScript benchmark tests performed using the SunSpider test suite on the iPhone 3G and 3GS, the T-Mobile G1 running Android, and the Palm Pre running webOS. The use of the SunSpider suite for benchmarking studies enables cross-platform comparisons among the devices, as they all utilize WebKit-based Web browsers. In the Medialets study, the iPhone 3GS outperformed the Palm Pre by a factor of three and the T-Mobile G1 by over a factor of five.
Notably, Medialets also tested the iPhone 3G running both iPhone OS 2.2.1 and OS 3.0, revealing that iPhone OS 3.0 provides a nearly three-fold improvement in performance over OS 2.2.1 running on the same hardware. The shift to the iPhone 3GS increases performance a further three-fold.
via macrumors
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