I don't disagree but then sensors are tailored for certain types of photography. On another note i did mention how Nikon was all 12mp for years no matter the camera until the d3x came out. Their sensors were probably more standardized for all types of shooting whereas the d3x was a major jump in definition and sharpness.
Usually sensors are matched to chips like computers, if there is a miss match there will be issues. However. the logic of a 1dx sensor that has a chip with less fps and iso capability prob could be done. Didn't Nikon at least at one point before the 3dx have all 12mp sensor cameras no matter the model?All they need is a different firmware.
I think this tailoring theory is a myth.
Till the D3X came out Nikon had only 2 full-frame DSLR with their 12.1MP sensor (D3 and D700). The D3S came out later.