Finally i got the command line for Intensity with XMRig-AMD
--opencl-platform 0 --opencl-devices 0,1,2,3,4,5 --opencl-launch 985x8 --opencl-affinity 0 -o stratum+tcp://[POOL.PORT] -u [WALLET] -p x --donate-level=1 --print-time=5
getting 750 H/s per card, but RX5xx can reach around 850-900 H/s
https://i.imgur.com/QQpPpZ4.pngIf you got reach 850 H/s+ with XMRig , share your config - command line! , thanks!
I don't use xmrig but try --opencl-launch 896x8.