The speed difference between Vista and XP is noticeable, with XP being considerably faster, and the gap is about to widen even more: Early in 2008, Microsoft is planning to release Service Pack 3 for XP, and I have heard that SP3 will, for example, make XP running MS Word 10% faster than XP with Service Pack 2, widening the speed gap considerably. You mean the "officebench mark" that was done on the same hardware ?
read this. Real good test. Perhaps they should have included Win98 with Office97.
In issuing Service Pack 3 for XP, Microsoft is clearly on the defensive. It's nice to see them at least somewhat on the defensive for a change.So far, SP3 is hardly any more then all updates that MS made for XP rolled into one. Strangely enough the RC1 of SP3 doesn't seem to feature IE7. It's nothing compared to what SP2 did to XP. And before SP2, XP was a very unstable OS (IMHO), offcourse, when SP2 came out people complained about all chances, just like they did when XP itself was released (hm.. A pattern..). Besides, SP3 has been in the planning since Longhorn was still based on XP (ie, years ago)
SP1 for Vista is somewhat the same, all updates for it rolled into 1, with the exception that several updates that are available for Vista are not obtained by using Windows Update like the "hotfixes", those hotfixes are available only if you need them and can't wait for SP1 but these may be better in SP1.
UAC isn't that bad at all, for a long read
go here. It may be bad if you have the habbit of (un)installing programs every minute or so or changing your settings all the time.
I'm running Vista since Beta 1, and since RC1 as my main windows OS. There were some problems with
third party drivers or programs and because the OS is made more secure some things just don't work like they used to (like sound drivers and those are therefore "less" then XP drivers, not to mention creative being "unwilling" to make drivers for a beta OS...) With all hotfixes and updates it's a very good Windows OS.
As for memory usage, yes Vista takes advantage of the memory instead of putting it all on disk. On XP, alt-tabbing out of a game could take ages as the OS tried to load everyhing back from disk to ram. On vista it's much faster, but it does depend on the game. Offcourse, there are people out there that have a memory meter just to look at how much (useless) memory they have free, or use "memory managers" that keep a certain ammount of ram free (while making the OS slow..).
Also, a lot of problems are from older non compatible programs that should have been forgotten allready. Like Norton 2003 giving problems on Vista. (As if Norton worked anyway).. Or not compatible drivers, just when XP hit the market.
Come on people. Have we forgotten how it was when going from 1.3 to 2.0 ? The joke was "the good thing about Kickstart 2 is that old virusses don't work anymore"