While it is great to see some actual data and benchmarking taking place, I would never trust an article on reddit for accurate information… The OP even acknowledges these are his opinions:
Personally I am still waiting for one of the reputable benchmarking magazine/websites to release their findings before casting my judgement on it. It was a mistake on Nvidia’s side, no doubt about that, but so far seems to be a minimal.
But… we’ve discussed at length already, so I will just leave it at that 
@CodeHelix - either of these two cards will work great for UE4 (970 or 290x), get whichever one you feel more comfortable with, they are very similar performance wise. 