While there is obviously history that I don't know about being that many posters called out MacVidCards for something that seems kinda obvious I can't figure out where he's wrong. We're probably big Maxwell away from 5K especially with Apple right now and Dell before the new year with 5K displays.The cMP I keep at work and the D600 sitting on my desk at home will likely be able to drive 5K but the nMP might not.
Given that DisplayPort 1.2 nMP compatible 5k monitors are on the way, suggestions coming from professionals that the nMP hardware is incompatible with 5k is scaremongering, at best.
The discussion has mostly been if the 5k Thunderbolt display will work with the current revision nMP. The nMP is possibly in a better place because the cMP has no Thunderbolt, and therefore will never support a 5k Thunderbolt display.