Round steak is considered the leanest cut of steak, but it's not the most tender. Other cuts of beef with a limited amount of fat include filet mignon, top sirloin, tri-tip, flank and center-cut ...
Both cuts are from an area at the back of the cow between the short loin and the round, but the top sirloin ... and leaner and can appear as tri-tip, flap steak or under the general label of ...