I bought two Saphire RX 580 Nitro+ 8GB (standard, not limited edition) with Samsung memory. I have Windows 10 and installed drivers Beta for Blockchain Compute 23 Aug. Also, I modded strap in bios, -dcri 6, claymore 10.3. In MSI Afterburner 1100/2150 and my results are about 29.6 mh/s per card. Power consume from wall metter about 380 w. Can I get better results with same or lower power consume?
Can you split the usage numbers per item. What part of the 380 w is going to the cards (total minus CPU, MOBO, HDD, etc. devided by two)? What does GPU-Z say? I think 380 totaal is on the high side and could be +/- 60-100 w less. What kind of PSU are you using?