#5 is here.
#4 January 15, 1995 1994 NFC Championship Game
The post-Montana 49ers suffered not only in comparison with the 4 time World Champions - but more immediately had a Dallas Cowboys sized hurdle that, in 1992 and 1993, proved impossible to leap, the Niners losing back to back NFC Championship games.
That ended here; Eric Davis took back an early pick for a score - the Niners jumped out to a 21-0 first quarter lead and held on for the 38-28 win. The Niners got two additional picks, two fumble recoveries, and 4 sacks - advancing to a Super Bowl which they'd easily win.
The 3rd greatest moment in Candlestick history is tomorrow.