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.

Online superstore Amazon is rolling out a new credit card that combines the best features of the Amazon Prime Store Card and the existing Amazon Credit Card. Available only to Amazon Prime members, ...

CNBC Select's best business card for Amazon is the Prime Business Card. It earns 5% back at Amazon Business, AWS, Amazon.com and Whole Foods Market (on the first $150,000 in purchases a calendar year, ...

Amazon Prime Visa vs Amazon Store Card. Which is best?