Mix together graham crackers, 6 tablespoons sugar, and butter. Press into a 9-x-13-inch pan and bake for 5 to 10 minutes. Cool.
Mix together cream cheese and 1 cup sugar. Add 4 well-beaten eggs and mix. Whip cream, and add vanilla; fold into the cream cheese mixture. Pour on top of the cooled crust and freeze. Take out about 15 to 20 minutes before serving. Top with your favorite pie filling.