Microsoft would like us to believe that Windows Vista and Server 2008 are basically the same and use the same codebase but the two differ slightly in certain areas. It appears that Server 2008 performs better in almost every sense of the term but benchmarks have failed to pin down the exact reason why.
We previously reported that Server 2008 performed almost 20% faster in some cases than what is supposed be its closely related cousin, Vista.
The Register reports that part of the reason that Server 2008 doesn’t get the same negative press that Vista does is because it delivers features that people actually want.