I have two rigs... one is 7x ASUS DUAL OC GTX 1070s.

I get about 460 sol/sec on EWBF 0.34 on Equihash, and 30.5MH/sec on Claymore dualmining Equihash and Sia (total of 214MH/sec for the rig), at around 145W per card.

The other rig is 5x Gigabyte Windforce GTX 1070 and 1x MSI Duke GTX 1070.
For Equihash, the Gigabytes get around 470-480, and the MSI can reach 500 - but these cards are much heavier on the power draw, even with power turned down.
On Claymore dual-mining ETH and Sia I get around 31.5MH/sec (total of around 188MH/sec for the rig).

Great performance but I would suggest the DUALs if electricity cost is a big factor for you.

What I am curious about is Lyra2z settings. My Gigabyte and MSI rig together gets about 9000kH/sec (averageing 1500kH/s per card) when mining ZCoin.
I'm not at all sure what the best overclock settings for this algo are, so any input would be appreciated.