A:Answer Hi Gurgle, thank you for your question and interest in Model:SPE53B52UC. The main difference between the 300 Series and the 800 Series is the 300 is 46 dBA and the 800 is 44 dBA and also includes a Delicate and Express Cycle. Here are the features they have in common: 10 place setting capacity, Standard 3rd rack, RackMatic middle rack, Fexible silverware basket, 24/7 AquaStop Plus, Favorite Cycle, Machine Care Option, Remote Start Option and Home Connect.