GamerBoy357 :
right now DX11 is the mainstream API, as LeKeiser said, by the time DX12 becomes the mainstream API both the cards will be under-powered. it will take at least 3 years for DX12 to become mainstream. so for the time being DX11 will be used and the GTX 1060 6GB is a stronger card then the RX 480. the only games in which the RX 480 has the upper hand over the 1060 is in games using the vulkan API. DX12 is the future, not vulkan. all of the pascal series cards have great overclocking potential including the GTX 1060. you can easily overclock a 1060 to 2.0 GHz on air cooling.
How can you even say 3 years until dx 12 becomes standard....vulkun is not the future, then explain why even intel is very interested on vulkan and has vulkan support for their intel integrated graphics, steam is investing hard on vulkan, more then opengl, Dota 2 has 10 to 12 million unique accounts playing during weekends, CSGo is getting source 2 engine with vulkan support, CSGO is played by the same amount of players as dota or even more! (Dota 2 already is using source 2 engine).
Please dont assume things without being informed, information is common commodity today if you not well informed or you don't do your research you are dead in the water.
Deus EX a major AAA title has a little better performance in dx 11 with RX 480 vs gtx 1060, and has a couple days ago dx 12 improved performance on RX 480 placing gtx 1060 behind, and getting a bit closer to 1070 (not much but a little).
Intel is currently developing their intergrated graphics to perform better with vulkan, they tested their integrated graphic with source 2 games, on dx 11 and opengl there were games that wouldn't even run, but with vulkan they do.
When a group like valve is invested on this new api, and with every major company wanting a piece of vulkan group, or just wanting to work close to them, dont thing i need to explain you more how business market works.
CIV 6 will come out with dx 12 on first day, Battlefield 1 will come out with dx 12 on day one, and even more coming within 6 month to 1 year.
<MOD EDIT: Insult Removed>