$30,000 CD vs. $30,000 high-yield savings account vs. $30,000 money market account: Which will earn more interest?

The interest-earning potential of CDs, high-yield savings and money market accounts may look similar but it won't be identical. Getty Images/iStockphoto Saving a sizable amount of money can feel incredibly difficult. But there has been one component that's helped lift some of that burden from savers in recent years – high interest rates on select savings accounts. …