Can somebody please explain to me. I'm DYING here.
90nm G80. 128 shaders
65nm G92. 128 shaders
55nm G92b. 128 shaders
65nm G200 240 shaders - 576mm2!
40nm GT240. 96 shaders
nVidia has barely changed the shader count at all... AMD went from 64 to 160 to 320, and each has 5 execution units. AMD doesnt even need die shrink to make 2.5x more shaders (RV670 -> RV770) and still small die size.

Does this mean AMD shader architecture design is more compact and efficient,
or
nVidia design has technical limitations and overhead?