According to tests by Devil Mountain Software comparing the release candidates for the last Windows XP service pack and the first Vista service pack, XP SP3 performs twice as fast as Vista SP1 on the same machine--and slower than the initial release of the Vista OS as well. Now, it will come as no surprise to anyone who's used Vista (or read my earlier posts on Vista) that XP outperforms the current version. But According to tests by Devil Mountain Software comparing the release candidates for the last Windows XP service pack and the first Vista service pack, XP SP3 performs twice as fast as Vista SP1 on the same machine–and slower than the initial release of the Vista OS as well. Now, it will come as no surprise to anyone who’s used Vista (or read my earlier posts on Vista) that XP outperforms the current version. But it’s not a good sign that it hasn’t gained any ground on XP in its first SP–and that XP SP 3, which was supposed to just be a bug fix release, has actually gained ground on Vista. This sort of performance is bound to give enterprise customers who’ve been waiting for Vista SP1 to make their go/no go call some pause. Software DevelopmentSmall and Medium Business