Some of these results are not making sense at all.
I have tweaked my Asus RX580 (8GB) according to best guide and not getting over 1000 hash on each.
I dont think its possible unless you having clocked it to have hundreds of memory errors and card then fuck up..
So! If you don't know how to do it then it is impossible?
Didnt say its impossible, just saying with the dodgy overlocks your not considering power draw.
Considering the safety of your cards, then good luck with your power bill vs profit of mining.
Good luck with the life of your cards..
Impossible? Nope.
Crazy overclock? Nope.
Insane power draw? Nope.
I can reach average 1100H/s in heavy with 1310/2020 (Samsung, 940mv cvddc) with no pain. Well, I did some tests with intensity but was not hard to find the perfect balance (between 56 and 58).
For Micron @heavyarms shared his own timings some pages ago and they are great. Ubermix timings are good for Samsung. So, there are many knowledge around this thread to find best performance.
I'm trying to find a way to break 1000H/s with stability with my Elpida. I had good results with some mixing, but when I reach 1000H/s with low memory clock, the ETHash performance drops even with high clock (it doesn't makes sense).