I keep reading hardware articles that recommend overly weak GPUs for 1080p gaming.
The R9 380, for instance, doesn't have enough power to provide acceptable fps (50+) in demanding games...
Try running Star Citizen or AC Unity at 1080p with one of those, you'll be very disappointed with the performance.
1080p isn't a joke, if the game is demanding enough (lots of AAA titles are nowadays), you'll need a GPU from the upper tier (R9 290 or above), in order to get just decent fps (between 40 and 60, in many cases). Also, if you want to go beyond 60 fps, you'll need an SLI /Crossfire setup...and sometimes not even that can reach the 100fps mark... I'm just talking 1080p here, higher resolutions are out of the question.
I think that articles like the one linked by the OP should include fps expectations too.
For instance, I have a 144Hz monitor, so I'm always aiming to go beyond 60 fps, but even at 1080p, I can't do that with a top tier GPU.
And for those who say that there's no difference between 60, 120 and 144Hz, you are either liars, blind or you've never
owed a monitor with a refresh rate higher than 60. 144Hz is a curse, once you've tried it, you can't go back to 60Hz, the huge decrease in fluidity becomes too obvious then. I have another pc with a 60Hz monitor and every time I use it I notice the tremendous difference in fluidity.