The stock clock is 1266mhz as well so isn't even like 1500mhz is THAT amazing in the grand scheme of things. It certainly isn't going to make up any ground on the 1000 series really as that is a ~20% overclock and the 1070 can overclock to around 2.1ghz on air (so about 20% as well)
Not quite right
1070 core speed = 1506
Stock boost = 1683
Therefore if they can hit 2.1Ghz its a 25% overclock over stock boost
The 480 would need to hit to 1582 to match it which maybe is acheivable.
So basically oth side will have similar headroom on their overclocks.
Yes, we all accept that if the 480 overclocks to 1500-1600 then it will be beating a GTX 1070 but then the 1070 overclocvks and pulls away.
I suppsoe the point is that if you can buy a card fro half the price of 1070 whcih then can match a stock one then its goo bang for buck.
Or look at it this way even overclocked the 1070 will be 86% more expensive for 25% more performance and then the gtx 1080 will be 200% more expensive for only 56% more performance.
Yes buy a 1080 if you want the absolute best, i think AMD is going to take the bang for buck.
And I would be more than happy for gtx 1070 stock performance for a $200 card.