If the 2060 retains the 192-bit bus with 14 Gbps GDDR6, we're looking at a 336 GB/s bandwidth theoretically giving ~41 MH/s on Ethash. If they sell the 2060 at ~$300 and it does around 75W when mining, it would compare favorably against a ~$1300 bitmain E3.
RTX2060 is rumored to have a 128bit memory bus, all the new RTX cards have a narrower memory bus compared to the older gen so why RTX2060 should be an exception .
Waiting for a new algo that will work only on RTX cards, RayCoin, GigaRays coin, RTXCoin....
