1, beef parts difference. Sirloin steak is the meat above the spine of the back of the cow, which is commonly known as the back half of the large loin, and filet mignon is the beef inside the spine of the back of the cow, which is commonly known as the small loin, and rib eye steak, also known as eye meat, is the center of the rib spine of the cow meat, which is commonly known as the large loin of the meat of the first half of the parts;

2, taste difference. Sirloin steak taste more chewy, lean and not firewood, the outer ring because there is obvious fat fry up a strong beef flavor, and filet mignon taste as creamy and smooth, very suitable for the elderly and children to eat, and the eye steak taste is particularly soft, because of the high fat content, so the taste is particularly thick and juicy, soft degree of tenderness is second only to the filet mignon;

3, the difference between the quality of the meat. Sirloin steak fat content is less, the middle of the meat is lean, the main fat distribution in the outer ring, and filet mignon because it is deep inside the cow's bones, so it is also the most tender parts of the cow, generally look the least amount of fat, and the meat is particularly soft and tender, and eye steak is generally with a greater amount of fat, the oil flower distribution is uniform, it looks more fat and thin; you