1100mhz core clock (-..?)
2126mhz mem clock (+450)
812mV
I'm pretty sure you can set higher core clock even at 812 mV. 1.1 GHz is super low, try something around 1.5 GHz or even more.
Due to the high energy costs i was aiming for lowest consumption. Right now im thinking if it would make sense to give it a few more watts in order to get a higher clock/mem frequency to squeeze some more mh/s outta it.
Anyone having some expirience with this?
If you just have to mine ETH (and there are more profitable coins for 1070s out there), then memclock is the first thing you should worry about. Increase it as much as you can, higher memclock won't have nearly as much effect on the power consumption as it will on the hashrate.