Consult the dot pitch of your monitor for the actual resolution. Everything is “scaled” to that resolution. Of course, the algorithm is physics, which is much better than cubic interpolation, so it does look slightly better, but a modern hidpi lcd will provide a higher dot pitch and thus a sharper, more accurate picture.
Color CRTs do have something akin to a native resolution too, defined by the phosphor arrangement, so they do "scale" things. It just happens that the scaling is naturally blurry and artifacts aren't noticeable.
Consult the dot pitch of your monitor for the actual resolution. Everything is “scaled” to that resolution. Of course, the algorithm is physics, which is much better than cubic interpolation, so it does look slightly better, but a modern hidpi lcd will provide a higher dot pitch and thus a sharper, more accurate picture.