Someone with sapphire rx580 nitro 8gb hynix memory can reach 1000+mh/s??
of course, anyone can! 1000 mh))
even with 4GB some of my cards can. And now there are a lot of variants of cryptonight algo with very different rates, what algo exactly do you mean?
for example, cryptonight-ipbc my 580 8gb can do 2200 h/s.
at heavy it can do 1150 h/s, but 580 4gb can only 750h/s.