CNBC Select looks at the credit score you'll need to boost your chances of getting approved for an Amazon credit card.

Costco and Amazon both have loyal shoppers who may consider opening one of the retailer's co-branded credit cards. Here's a side-by-side comparison.

Credit Score ranges are based on FICO® credit scoring. This is just one scoring method and a credit card issuer may use another method when considering your application. These are provided as ...