Preheat oven to 350 degrees. Spray a 9 x 13 baking dish with non-stick cooking spray.
In a large bowl whisk together cake mix, eggs, pumpkin, milk, butter, sugar, and pumpkin spice until well combined.
Pour batter into prepared baking dish.
In a medium bowl beat the cream cheese and butter together using an electric hand mixer until smooth. Beat in powdered sugar 1/2 cup at a time until well incorporated.
Place spoonfuls of the mixture all over the top of the pumpkin batter. Using a knife swirl the pumpkin batter through the cream cheese mixture. Don't over swirl. Sprinkle the chips on top.
Place in preheated oven for 30-35 minutes until a toothpick inserted in the center of cake comes out clean. Allow cake to cool completely before serving. (Cake will be very moist.)
