Files copied faster in our initial tests, but other performance was slightly slower with the SP1 installed.
Microsofts newly released Service Pack 1 may solve some of the performance glitches that have annoyed Windows Vista users and discouraged others from adopting the OS, but it doesnt appear from our initial tests to be a panacea.
In our first tests of the service pack, file copying, one of the main performance-related complaints from Vista users, was significantly faster. But other tests showed little improvement and in two tests, our experience was actually a little better without the service pack installed than with it.
Service Pack 1 was released to manufacturing yesterday, and officially sent out to reviewers today (Service Pack 1 was also unofficially unleashed today on BitTorrent, too). Service Pack 1 will be available to users in March, as a download; Microsoft plans to have SP1 integrated into Windows Vista at retail as well, but could not give a timeline on how quickly the update will be included in the retail version of Vista.
View: Full Review @ PC World