its reallly just a matter of money and What you want.. are we talking the same cores here Newcastle
if so they overclock about the same
and If you go mobile... dont get a DTR that is a desktop replacement and isnt a good overclocker at all ... it doesnt have the low voltage to start on which completely defeates the purpose
so basicly if you have the money and want to get a what .2ghz faster for say 50bucks more go right ahead