AMD RX 580 – 1050 h/s

Scratchpad: 4MB

"gpu_threads_conf" : [
// gpu: Ellesmere memory:3920
// compute units: 36
{ "index" : 0,
"intensity" : 864, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 2, "mem_chunk" : 16,
"comp_mode" : true
}, // gpu: Ellesmere memory:3920
// compute units: 36
{ "index" : 0,
"intensity" : 864, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 2, "mem_chunk" : 16,
"comp_mode" : true
},
// gpu: Ellesmere memory:3920
// compute units: 36
{ "index" : 1,
"intensity" : 864, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 2, "mem_chunk" : 16,
"comp_mode" : true
}, // gpu: Ellesmere memory:3920
// compute units: 36
{ "index" : 1,
"intensity" : 864, "worksize" : 8,
"affine_to_cpu" : false, "strided_index" : 2, "mem_chunk" : 16,
"comp_mode" : true
},

Image shows both GPUs.