R9 270 180 180
180w for r9 270 i don't think so it s an 150w gpu so it s more close to 100-110 probably
and 380 it s vary a lot with model and ram, the worse i have is asus 380 4G it does only 206mh
I am getting about the same for Gigabyte R9 270 running 12.4.
Average of 4 cards (2 under win, 2 under linux)
H/s: 175
watt: 115-120