To a man, Green Bay believes its defense in particular, its team in general, is, well, different than the unit that was pretty much used by the 49ers in the season opener.
"We're a better team, that's the bottom line," defensive back Charles Woodson insisted after the Packers' wild card defeat of Minnesota last weekend.
"Both sides of the ball, I think we're a team right now that's, what you could say, is battle-tested. We've been in some tight ballgames and we've been able to pull them out. And so, we feel like this week, going into a tough environment against a good team, that we're ready for it."
Defensively, the Packers will also be ready for the 49ers' two-headed monster at tight end. The question, though, is can they do anything about it?
"Obviously everyone knows about Vernon Davis, been doing it a long time, but also Delanie Walker," offered Packers linebacker A.J. Hawk. "I mean, they do everything with him -- fullback, tight end, line him up in the slot…their guys can kind of play everything, both of those tight ends."
Davis caught three passes for 43 yards, including a four-yard touchdown pass in the third quarter that gave the 49ers a 23-7 lead in their eventual 30-22 victory on Sept. 9 at Lambeau Field. Walker, though, was shut out on a pair of targets.
"So, it can cause some problems for you," Hawk added. " But that's why we're here. That's why there's only eight (teams) left."
How Green Bay deals with Davis and Walker Saturday at Candlestick Park could decide which team -- the Packers or 49ers -- advance to the NFL's version of the Final Four.
"Their two-tight end package is excellent, whether it's two tights-one back, two receivers-two tights-and two backs, so they do a number of different things," said Packers coach Mike McCarthy. "They'll spread you out in those formations, test your roles and make sure each call is in place.
"But they're definitely multiple in what they do and conceptually, able to do everything out of all those personnel groups."