Is it possible that both windshields are manufactured by the same company; one is branded and the other is not? For example, CARLITE makes all windshields for FORD, GM and most Chrysler vehicles among many others. The one that are installed in the new cars have the automobile manufacturers’ logo on it. But in the replacement parts market, you have the option to buy CARLITE branded or automobile manufacturers’ branded glass. It is the same glass for about $250 less for CARLITE branded instead of automobile manufactures’.
Most of the windshields are manufactured in China these days anyway. If you can verify the specifications, especially the safety features, you should not have any problem getting the cheaper one.