I have MSI GeForce GTX 1070 GAMING X 8G and I achieve 450-460 Sol/s easily at 85% +90 Core +645 Mem with EWBF's CUDA Zcash miner. This card can take a lot more punishment than my other 1070s from ASUS but there are diminishing returns in further overclocking.
85% on THOSE cards though is ballpark 170 watts though as I recall - which is quite a bit more than 100% TDP on the EVGA 1070 SC (which only has a 151 watt TDP).
As I recall, the EVGA FTW models also have a higher TDP (180 watts I think), but I don't have any of those myself so not sure there.
My SC cards don't handle +550 memory worth beans long-term, but they do handle +500 well - I have the originals that didn't have the added thermal pads though.
Probably depends on the memory in a specific card.