The Cardinals did beat the point spread in the Super Bowl. The point spread was 6 and the Cardinals lost by 4 points.
The Green Bay Packers were favored by 2.5 points over the Pittsburgh Steelers in Super Bowl XLV.
Patriots favored by 3.5 points.
The Patriots were favored by 13 points this year. That is the highest point spread in the superbowl, which makes the Giants' win that much more phenomenal. This is incorrect. The Packers were 14 point favorites in Super Bowl XXXI over the Patriots, and Super Bowl I over the Chiefs. The 49ers were 18 1/2 point favorite over the Chargers in Super Bowl XXIX, which IS the highest Super Bowl point spread.
The lowest point spread of a super bowl was one point
Buccaneers in Super bowl 37. Scored 12 points.
The San Francisco 49ers wiht 55 points in a single Super Bowl.
It was their third Super Bowl. In Super Bowl XIII the Steelers scored 35 points against the Dallas Cowboys.
Through Super Bowl XLII, that is 31 points by the Dallas Cowboys who lost Super Bowl XIII to the Pittsburgh Steelers, 35-31.
The San Francisco 49ers scored 55 points in Super Bowl XXIV.
Through Super Bowl XLVIII: 1) Super Bowl XXIV - 45 points - San Francisco 49ers 55, Denver Broncos 10 2) Super Bowl XX - 36 points - Chicago Bears 46, New England Patriots 10 3) Super Bowl XXVII - 35 points - Dallas Cowboys 52, Buffalo Bills 17 4) Super Bowl XLVIII - 35 points - Seattle Seahwaks 43, Denver Bronos 8 5) Super Bowl XXII - 32 points - Washington Redskins 42, Denver Broncos 10 6) Super Bowl XVIII - 29 points - Los Angeles Raiders 38, Washington Redskins 9
If you mean in one game, in Super Bowl 24 the 49ers scored 55 to the Broncos 10 for the most points scored by one team in the Super Bowl.