rx 470 - 80mh/s
rx 480 - 105mh/s
gtx 1070 - 290mh/s
750 ti - 50mh/s
if numbers are correct well nvidia got upper hang.
although dual mining with rx cards is possible.
Also for reference, here's a zpool benchmark of my Asus GTX 980 which i have seen recently on CL for as low as $200 ea:
ASUS GTX 980 SM 5.2 HWID: 1043:8518 Hashrate: 177.884 MH Intensity: 24 Freq: 1278 Watts: 179
ccminer/1.8.3 win64 CUDA 7.5 369.09
sorry, i didnt take any wattage readings. This reading is from 3 months ago. The wattage reading is computed through the miner via knowing device TDP I believe... or the CUDA device can return a value.. (i'm unsure which)