There is no doubt that the new Nikon Df camera is very similar to the D600/D610 duo, as we’ve already seen from the comparison. From a price stand-point, however, Df is dangerously close to the popular and extremely capable Nikon D800 model (see our very detailed review). Can the Nikon Df back up its price premium when compared to its bigger brother? Analyzing on-paper specifications of both cameras should give a pretty good idea, although you might find the ISO performance comparisons in this article quite useful to make your own conclusions.
Keep in mind, please, that this comparison is based strictly on specifications and image quality. A camera is often more than a sum of its parts, and that stands true for both Nikon Df and D800.