There is! While they may sound the same, there are some distinct differences between pork loin and pork tenderloin. Here’s a comparison of the two: Pork loin – a larger cut of meat that is usually sold as a 3-5 pound roast. Pork loin is fattier than pork tenderloin, usually comes with a fat cap on top, and can be sold either boneless or bone-in. Pork tenderloin – a smaller cut of meat that usually weighs about one pound. The tenderloin is from a muscle that runs along the spine of the pig and isn’t used for movement. As a result, it’s much more tender than other cuts of meat. Pork tenderloin is a lean cut of meat that has a very mild flavor.