Here's a comprehensive list of how different GTX 1070 perform http://miningcamp.info/posts/24-test-vseh-gtx-1070-v-maininge-zcash-i-ethereum.html. Note that during the tests all over the cards were overclocked, running at 111% powerlimit and 100% fan speed. In summary, Palit cards really seem to be the highest performers, especially considering the price, and the Inno3D card is ill suited for mining due to the heatsink cooling neither the memory or the VRMs.