Nice that you assume I don't know what kind of panels Dell uses (currently e-IPS and S-PVA, 8 bit) while Apple hitherto was, to put it politely, not known for using quality panels in their offering (TN <cough> 6 bit <coughcough>). I'm glad to Cupertino is at least up to snuff when it comes to Dell. Took sure their sweet time doing that.

The only kind of displays suitable for professional work are the expensive kind that comes with an external calibrator. Neither Dell nor Apple sells these.

Next time, please don't assume people are ignorant.