Montana's performance in the playoffs improved over his regular-season performances. His yards per attempt and yards per attempt went up from 7.5 to 7.9 and his YPC improved from 11.9 to 12.5, resulting in an increase in his passer rating from 92.3 to 95.6.
By comparison, Brady's playoff stats were lower in every meaningful area and his passer rating in the playoffs was 90.4, compared to 97.6 in the regular season.