Sorry to bust your chops but you're dead wrong, againThat's a poor upgrade. 780 to 1060 is hardly much of an upgrade. You might as well wait for Volta or get atleast 1070.
The 1060 can match or beat the stock 980 very easily, especially when OCed ~ www.anandtech.com/bench/product/1493?vs=1442
The performance uplift is 40~60% with a fair bit of power savings.