GTX 1060 6gb VS RX 580 8gb

[Gameroo7]

I know this question has been asked around a lot.
I've been planning a GPU upgrade for about a month and still am undecided. I've been an AMD user for as far back as I can remember but this time i wasn't even looking the AMD way and was set on buying the 1060 (due to Nvidia's GameWorks) until I heard stuff like the RX 580 outperforming the 1060 in most DX12 games after the latest driver updates (e.g. https://www.youtube.com/watch?v=rQgZGzk-Kwg). I wanted to get others opinion on this matter.
I would also like to know which card would age better (Future proof at. Yeah I know, no card is future proof but I'm ready to drop some settings after a couple of years, at least 2).
BTW I play on 1080p.
Thanks in advance.

 

[Gameroo7]

When you used the DisplayPort, did you enable FreeSync mode by accident or was it enabled without you being aware? The R9 270 does not support FreeSync, it might have something to do with it.

Is there a DisplayPort entry on your mobo which you could perhaps try aswell?

I know that R9 270 does not support FreeSync and neither did the Monitor (HP). And when you go to Crimson with R9 270 the it tells you that your hardware does not support FreeSync so i didn't turn it on. I got display for like a minute and then the screen went blank.
No DisplayPort on my mobo but i tried another PC with multiple monitors and those multiple monitors with another PC after that still got no display. Returned the monitor got a refund and bought this monitor (ViewSonic) it had an HDMI so i never used the DisplayPort on this. Well let the new card arrive (God know when cuz I haven't even orderd yet) and then i will check it again.
Anyways I will be ordering the RX 580 this Sunday (Probably). Will let you know how it goes. And if I still face problems with DisplayPort i will start a new thread
Thank you guys.