AFAIK TN-based displays are 6-bits per color, i.e. (2^6)x3 total output, not sure if that's a limitation of TN technology or just an unfortunate tradition. But

AFAIK TN-based displays are 6-bits per color, i.e. (2^6)x3 total output, not sure if that's a limitation of TN technology or just an unfortunate tradition. But that is a technology-based comparison, rather than a performance-based comparison. There are no intrinsic reasons I clearly see an abrupt color cut-offs in smooth skin gradations when working in Photoshop unless my head is positioned perfectly [speaking of MBP, arguably the best TN-based laptop LCD]. So... intrinsic reasons or not, I haven't seen a usable TN-based display yet. W700 costs almost 3 grand. For that kind of money I don't need yet another "best TN laptop display", something like my 6-year old 17" Samsung with a true 8bit panel will do.