7 has significant kernel improvements that dramatically improves its performance, as well as huge changes to its graphics system that heavily reduced memory usa

7 has significant kernel improvements that dramatically improves its performance, as well as huge changes to its graphics system that heavily reduced memory usage. (Data that was mirror in system ram wasn't anymore, dropping local RAM usage.) If you threw enough horse power at, vista could be fast, but it would always end up using more resources than windows 7.