Just put this video card mining expectations together based on posters info. It may or may not include OC settings. Please add or correct as you see fit

7950 - 225
7970 - 220
7990

270
270x
280 - 195
280x - 235
290  - 290
290x - 320
370
370x
380
380x
390  - 310
390x - 350

470 4g - 208
470 8g
480 4g
480 8g - 245

GTX 1060 - 250
GTX 1070
GTX 1080