Hashrate already posted in the comments below. You can try lowering the core voltage if you are at stock to get a lower power usage, most 470/480 cards should be capable of running just fine at about 1.05V for the core for ZEC, for ETH you can go even lower as lower clocks are normally used without performance loss.
Hashrate already posted in the comments below. You can try lowering the core voltage if you are at stock to get a lower power usage, most 470/480 cards should be capable of running just fine at about 1.05V for the core for ZEC, for ETH you can go even lower as lower clocks are normally used without performance loss.