I think the problem is you do not know the definition of presumably as if we did not expect Steve to put together a fair test.
Anyhow, here are some of the older RX 570 and 1060 3 GB comparisons:
https://www.techspot.com/review/1411-radeon-rx-570-vs-geforce-gtx-1060-3gb/page8.html
https://www.techspot.com/review/1660-geforce-gtx-1060-3gb-vs-radeon-rx-570-4gb/
Surprisingly, the 3gb 1060 is actually doing better against the rx570 than it was 2 years ago despite having less vram.
Still, most would agree the rx570 is the better buy.
Anyhow, here are some of the older RX 570 and 1060 3 GB comparisons:
https://www.techspot.com/review/1411-radeon-rx-570-vs-geforce-gtx-1060-3gb/page8.html
https://www.techspot.com/review/1660-geforce-gtx-1060-3gb-vs-radeon-rx-570-4gb/
Surprisingly, the 3gb 1060 is actually doing better against the rx570 than it was 2 years ago despite having less vram.
Still, most would agree the rx570 is the better buy.