The games that do show large advantages without patches were ones that either utilized dynamic resolution where the resolution depends on the load of the GPU or shipped with a variable frame rate (or had an option to 'unlock' the frame rate). So they have no expectation of running on anything other than the base hardware the game shipped as supporting and have little way of fully tapping into that power without an explicit patch. Console games are not architected like PC games where they have to support a massive varying hardware base out of the box, until the advent of the PS4 Pro/One X, having even simple mode changes like 'resolution/performance' were almost non-existent.
