Combine graham cracker crumbs, 1/4 cup sugar, and melted butter in a bowl. Press into the bottom of a 9-inch springform pan.
Beat cream cheese with remaining 1/4 cup sugar until smooth. Blend in canned pumpkin, cinnamon, and nutmeg. Add eggs one at a time, mixing well after each addition.
Pour mixture over crust. Bake in preheated oven for 60 minutes or until filling is set.
Cool cheesecake before removing from pan. Chill in refrigerator for at least 3 hours before serving.
Notes
Best served chilled with a dollop of whipped cream.