Aditya Banerjee's Library tagged benchmark →  View Popular, Search in Google

Chrome 13 on Windows & Safari 5 on Mac OS X
Firefox 6 remains a decent performer on Windows too
IE9 has its strengths on some hardware accelerated stuff, while Opera is an erratic performer - poor memory management & javascript conformance, but decent page load reliability.

chrome web windows mac safari opera ie browsers benchmark test

Handy little tool to benchmark the DNS servers locally & thus choose the best one

dns tools benchmark performance network software

A nice little benchmark comparing CPUs across the last few generations. Includes the P4 & boy does it get toasted.

cpu computer benchmark hardware reviews reference

javascript performance testing tools benchmark browser development

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benchmark firefox javascript results

Slightly dated article - includes browser versions upto FF 2.0, IE 7b3 and Opera 9.01

benchmark comparison firefox opera ie speed

Results for Firefox 2 javascript benchmark on home PC (Athlon 64 3200+, 1 GB RAM)

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Results for IE7 javascript benchmark

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Results for Flock javascript benchmark

browser benchmark javascript flock test result

Results for Opera 9.20 javascript benchmark

opera browser javascript benchmark test result

Results for Firefox 3 beta 2 javascript benchmark

firefox benchmark test javascript result

Results for Firefox 2 javascript benchmark

javascript firefox benchmark test result