Pouilly Fumé and Sauvignon Blanc

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Is wine labelled Pouilly Fumé (the real stuff from the Loire, of course) representative of Sauvignon Blanc? Or is it just another style of wine that uses the sauvignon blanc grape? I have a bottle and am considering tasting it against a NZ SB to pick up on similarities and differences, but I probably ought not do that if PF is not considered representative of SB. (It's a 2001 Blanchet Vieilles Vignes PF.)