GPU - 9.1 -> 9.2
R7 370 - 155 -> 156
R9 280 - 195 -> 193
r9 290 - 295 -> 313
R7 370 - 155 -> 156
R9 280 - 195 -> 193
r9 290 - 295 -> 313
What's your settings for 290?
1050/1250, -i 8, modded 390X ROM, modded timings
1175mV core (just 69% ASIC) and 16.12.1 driver
So on 290 (not x) using 390x mod?
Yep.
No rocket science, just great work by Insan1tyOne http://www.overclock.net/t/1564219/modded-r9-390x-bios-for-r9-290-290x-updated-02-16-2016
However, if you want to run it 100% stable @190W at wall with such hashrate, it will take some time. With better ASIC would be easier of course. Probably can do a bit over 320H too, but I do not consider it before winter gets colder here
