The All Blacks scored six tries to one in a bonus-point 39-22 victory against the Pumas in New Plymouth.
The Pumas led 16-15 at halftime and 22-15 after 50 minutes.
But they were never in the contest in the last half an hour as the All Blacks added three more tries to the three they scored in the first half an hour.
The All Blacks, fielding several of their fringe players, looked disjointed and lacked the all-round fluidity that has been the essence of their dominance of international rugby since 2011.
This said, they possess breathtaking individual brilliance and they again showed the ability to break open a game because of the skill quality on attack.
The side to play the Springboks next week will in all likelihood be very different and All Blacks coach Steve Hansen will be satisfied with an emphatic try-scoring dominance.
The back three of the All Blacks all scored tries and replacement back Lima Sopoaga provided the spark and impact in the second half. Sopoaga replaced the injured Israel Dagg and slotted into flyhalf with Damian McKenzie moving from fullback to wing and starting flyhalf Beauden Barrett taking over at fullback.
Flanker Fifita showed his athletic explosiveness with a spectacular solo try in a night when the individual moments turned an initial All Blacks struggle into a comprehensive win.
Argentina were spirited and competitive for an hour but they lacked the class to threaten the All Blacks for 80 minutes.
The All Blacks have scored 15 tries in three Rugby Championship matches and the win takes them to the top of the table with 14 league points.
New Zealand 39 (N. Milner-Skudder, A. Lienert-Brown, I. Dagg, V. Fifita, D. McKenzie, B. Barrett tries; L. Sopoaga 3 cons, pen)
Argentina 22 (N. Sanchez tries; N. Sanchez DG, con, 2 pens; E.Boffelli 2 pens)