ok so i tested 1500 straps on my rx470 with 1880 memory but it s worse than 1375traps get only 689h
used -h 940
its also worse on eth lose almost 1mh best is 1375traps for me
-h 1830,1900 -dmem 0
Thanks for you coments, I reached 900 h/s on my rx 580 4 gb.