Hi all,
I managed to get 14,5-14,6 (card I have connected monitor to is 14,3, dont know if its normal) by myself by simply editing bios for Sapphire Rx560 OC 4GB. I guess only thing I can do better is better timing for micron memory (2100Mhz mem have same performace for me at 1625 and 1750 straps) and 1500 are not working for me 1800+ MHz.
So if anyone interested, i can give you BIOS which works for me
Sapphire Rx560 OC 4GB
1060/2100 (for me its working at 2200MHz) at 1750straps
typically 38-40W
For symbolic 0,001 ETH (I am kiddin, you can send me but you dont haveto)

Nice result, considering the power consumption. Did you touched the Power Limit or it's 0 ?