Preheat the oven to 325°F (163°C).
In a bowl, combine graham cracker crumbs and melted butter.
Press the mixture into the bottom of a springform pan to form the crust.
In a mixer, beat cream cheese until smooth.
Gradually add sugar and mix until well combined.
Add eggs one at a time, mixing well after each addition.
Stir in vanilla extract and sour cream.
Fold in chocolate chips and chopped pecans.
Pour the cheesecake batter over the crust in the springform pan.
Bake for 60 minutes or until the center is set.
Remove from oven and let cool before drizzling with caramel sauce.
Refrigerate for at least 4 hours before serving.