Different texture: the beef brisket is more compact and chewy, while the tenderloin is more tender and smooth.
Different tastes: Due to different positions and muscle tissues, the tastes of beef brisket and tenderloin are slightly different. The taste of brisket is rich, while the filet mignon is relatively light.
Different prices: Generally speaking, the price of filet mignon is higher than that of sirloin steak, because filet mignon is tender meat, and the quantity is limited, so it is relatively expensive.