S9 13.5Th + P3 Power PSU 2100w -> Fix 650M frimware -> bmminer880

0.08 $/kWh
750m - 15.7th - 1670w profit - $0.38
700m - 14.9th - 1540w profit - $0.44
650m - 13.9th - 1430w profit - $0.44

Overclocking is not profitable?