The power sipping 7+ H/watt RX550 – 460 h/s

Scratchpad: 2MB

{ "index" : 0,
"intensity" : 440, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
},
{ "index" : 0,
"intensity" : 440, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 1, "mem_chunk" : 2,
"comp_mode" : true
},

Config for the PC 550:

Two threads per card

They are slightly slower using a single thread per card at about 406H/s