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#151
XP and 7 are two completey different OSes, both under the hood and in appearence. XP had a 5.x kernel while Vista and 7 share the 6.x kernel. If you said that Vista heavily contributed to the development of 7 than you would be absolutely correct...remember than even Vista wasn't based on XP as that development was reset. You want me to list out benchmarks here but why should I waste time..."Windows XP SP2 vs Windows Vista SP2 vs Windows 7 RTM" in google will get you all the information you want