I recently did some tests with my single 1070ti as I was trying to make sure I making the most from it, here’s what I found (btw, mine has Samsung memory
):
GTX 1070 Ti Settings:
Claymore: 55% power, -100 clock, +1000 memory = 34.2 Mh/s, 98w
Fan: 60%, Temp = 62 C
XMR-stak: 70% power, +200 clock, +1000 memory = 788 h/s, 92w
Fan: 65%, Temp = 49 C
EWBF: 80% power, +240 clock, +1000 memory = 560 sol/s, 143w
Fan: 85%, Temp = 58 C
So for me ETH mining was the most efficient power wise, but I only mine ETH (no dual mining). Are you really making that much more with dual mining? I have always found it to be not worth the trouble when you consider the additional power needed, and the fees involved.