If you don't have prepared graham cracker crusts, use the directions on the back of graham cracker crumbs and make two crusts.
Cream together cream cheese,8oz's whipped topping, peanut butter, sugar and vanilla. Pour into crusts. Top with the other 8oz's of whipped topping. Chop the peanut butter cups and sprinkle on top. Drizzle with chocolate syrup. Freeze. Thaw in refrigerator for several hours before serving. Makes two pies.