The Porterhouse is just a larger version of the T-Bone because it is carved from the larger portion of the tenderloin. A Porterhouse is the "King of the T-Bones". Diagram Showing Beef Cuts Both are cut from the short loin area of the beef. A center "T-Shaped Bone" divides two sides of the steak. On one side is a tenderloin filet and the other is a top loin which is better known as the New York Strip Steak.