Just took a quick look at this. If you are located in the 'mining valley' of Washington where power is ~2c/kwh you are still getting healthy profits. A computer with 7 GTX 1070 graphics cards should produce ~230 mh/s and draw 1 kw. This would cost approximately $30/month in power factoring in kw demand + cooling. The above setup will currently generate $385/month in ETH. So basically for miners who are in the right s…
And you can't get 230 MH/s with 7x GTX 1070 with 1kw of power draw. More like 215 MH/s and with around 1.2 kw. I know because I have mining rigs with 7x GTX 1070s.