As you can see, you don't need high core clocks on RX cards.
The weird thing is that XFX runs on the lower mem clock compared with the other two cards, but it yields the highest hashrate.
Perhaps it's the timings in the modded bios that work this good. I used the "uber" timings for Samsung memory. When I tried to increase the mem clock, I was getting lower hashes and increased instability.
It's not uncommon to see higher hashes when you start the miner. I get it too.
I run Zotac Mini GTX 1070 with core/mem +150/+700 and Asus Dual GTX 1070 with core/mem +120/+550, all @ 65% TDP, and get 12S/s.
what settings do you use to get 12.2 S/s on XFX?
(I mine zero on Suprnova with 1 armor RX 580 8 Gb at 1366 core / 2175 mem and 1 GTX 1070 @ +120 core +500 mem)
another question: on my RX, the number of S/s starts around 11, then goes down around 10 and I don't know why, any idea ? (the GTX doesn't do that)
thanks
(I mine zero on Suprnova with 1 armor RX 580 8 Gb at 1366 core / 2175 mem and 1 GTX 1070 @ +120 core +500 mem)
another question: on my RX, the number of S/s starts around 11, then goes down around 10 and I don't know why, any idea ? (the GTX doesn't do that)
thanks