Let's put some things clear:
- Does the 1060 consume less power? Yes, but differences are rather small, 50-70W average with some peaks of 100W if the 480 user goes nasty with voltage.
- Is the 1060 a cooler and more silent gpu? That depends on the model you choose, but generally yes, although Gaming X, GTR and Strix don't have anything to envy from the 1060, they are silent and decently cool. NITRO and G1 can also be silent, but they suffer more from high temps.
- Does the 1060 overclock better? Well, that depends on how you see it. With absolute numbers yes, the 1060 overclocks better because it can be put at +250MHz. But absolute numbers aren't a reliable source when comparing. Relative numbers are what should be taken. And here things are much neck to neck, he 1060 tends to overclock around 7% and the 480 around 6%.
- Does the 1060 perform better? Again, it depends on what you are looking at:
Reference vs Founder when launched? Here the 1060 wins by a decent margin, around 10-12%:
https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1060/26.html
Reference vs Founder now? A little bit less.
Custom vs custom? Differences get smaller, and the 480 is around 5-7% behind:
https://www.computerbase.de/2016-08...hnitt_benchmarks_in_1920__1080_und_2560__1440
Oced vs oced? Well, the 480 is able to match the 1060 in average, with the 1060 being better at older games and the 480 at the newest (not only dx12):
http://www.babeltechreviews.com/gigabyte-rx-480-8gb-g1-gaming-edition-meets-red-devil-gtx-1060/5/
- Is the 480 better at DX12/Vulkan? Yes, no matter what people is saying. The AMD card has an architecture designed around low level APIs and async compute. Meanwhile, the 1060 is just a boosted Maxwell with some tweaks to make performance at async compute less pathetic, but it's still far from what the AMD has been achieving since Tahiti.
- Will the 480 age better than the 1060? Well, it already has. With the driver AMD has been releasing since Polaris launch, the 480 has only become better and better (see previous comparisons). And if we look at the future, the 480 has everything to become the best solution in the long term: Better dx12/vulkan performance, more VRAM, better at resolution scaling, Crossfire vs no SLI and uncapped performance now that with +16.9.1 drivers bios mod is supported.
Also, if Nvidia releases Volta with hardware support of async compute, say goodbye to Maxwell/Pascal performance like it happened with Kepler compared to Maxwell/Pascal.