Hi all. 
My shapphire rx480 with samsung memory got about 27mh/s @80watts with 1000/2250.
My shapphire rx580 with samsung memory got about 27.8mh/s @120watts with 1100/2250.
Seems like rx480 is better not only because the mh/watts but also the price.But 480 are sold out so I have to buy 580 instead.I can live with that.
But yesterday I got a RX580 with hynix. No matter how I change the coreclock/memclock, it only got about 21mh/s @85watts.
My Sapphire 480/580 with samsung always do about 27mh/s on ETH or 330 sols/s on ZEC. but this sapphire rx580 with hynix do 21mh/s on ETH or 280 sols/s on ZEC.
Is that regular? i didnt flash bios,only use msi afterburner. Does it means 580 with hynix sucks?what should I do ?
And which brand is better than sapphire? and why is that?
Thx.
My shapphire rx480 with samsung memory got about 27mh/s @80watts with 1000/2250.
My shapphire rx580 with samsung memory got about 27.8mh/s @120watts with 1100/2250.
Seems like rx480 is better not only because the mh/watts but also the price.But 480 are sold out so I have to buy 580 instead.I can live with that.
But yesterday I got a RX580 with hynix. No matter how I change the coreclock/memclock, it only got about 21mh/s @85watts.
My Sapphire 480/580 with samsung always do about 27mh/s on ETH or 330 sols/s on ZEC. but this sapphire rx580 with hynix do 21mh/s on ETH or 280 sols/s on ZEC.
Is that regular? i didnt flash bios,only use msi afterburner. Does it means 580 with hynix sucks?what should I do ?
And which brand is better than sapphire? and why is that?
Thx.
You can't get above 27 with ANY memory without strap mod except in rare cases.