I just noticed, that my GPU is not so hot when mining zcash compared to ethereum mining.
I have an RX 470.
Gpu core temp:
Zcash: 62°C 35Sol/s
Ethereum: 77°C 21 Mh/s
Mining profitability is the same right now, but Zcash may use less power.
Unfortunately I have no power meter at home, but if someone has, I would be happy with some data.