Followup: Windows XP SP3 runs browsers 13% faster than Windows 7 RTM
Graphic from the same article:
One comment after the article:
How can this even be a true speed test. 25% of the score has nothing to do with speed.
The debate rumbles on...
... all of these sensational benchmarks fail to to show performance for Windows 7 64-bit or Windows Vista 64-bit which on average perform better than their 32-bit counterparts due to the increased number of general purpose registers available on AMD64/EMT64 CPUs in 64-bit mode.