Preheat oven to 350°F (175°C). Grease a 9-inch springform pan.
Combine graham cracker crumbs, butter and granulated sugar in medium bowl. Press onto bottom and 1-inch up side of ungreased 9-inch springform pan. Bake for 6 to 8 minutes (do not allow to brown). Cool on wire rack for 10 minutes.
In a medium bowl, mix together the cream cheese, 1/2 cup sugar, and vanilla just until smooth. Mix in eggs one at a time, blending well after each. Set aside 1 cup of the mixture. Blend 1/4 cup sugar, pumpkin, cinnamon, and nutmeg into the remaining mixture.
Spread the pumpkin flavored batter into the crust, and drop the plain batter by the spoonful onto the top. Swirl with a knife to create a marbled effect.
Bake 55 minutes in the preheated oven, or until filling is set. Run a knife around the edge of the pan. Allow to cool before removing pan rim. Chill for at least 4 hours before serving
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.