Since we have no real Zambezi benchmark number it's unknown how it will perform.It may be a total flop for all we know . But AMD knew a 1+ year how i7 Gulftown performs and they still call Zambezi their high performance part aimed at enthusiasts .They also revived FX branding.This at least suggests the performance should be close to what Gulftown offers.It may not be able to beat it completely but as I said before AMD just needs to be competitive. Intel will have 3.46Ghz Gulftown when Zambezi launches so it will be a hard task to equal this monster,let alone beat it.