Yes there is a difference...In tenderness, texture, and flavor -- The more a muscle (meat) is used on the animal the tougher it will be compared to the muscles used less. The filet is used very little, if any, so it is very tender with a soft texture -- You might say a steer has a roping end, and a branding end --- The stuff in the middle is the tender grilling meat ... The other mostly cooks up best using moist heat (cooking) methods --- HTH
Have Fun & Enjoy!