I run 8 x 1070 in one rig, 6 x 1080Ti in one rig and 5 x 1080Ti in one rig. they all run together in their own rig build. I mean, I run zm batch to work 8x1070 together and others respectably in their own.
while running, the target difficulty is set by the server (any chance to achieve static difficulty through miner?). the target difficulty is somehow too high for the 1080Tis which in return I get only 7,5 - 10 shares per minute in average; that being said I get zero returns on payment on some blocks randomly.
but with the 1070s, even though they are %60 solutions capable against 1080Tis, I have around 60 shares per minute in average.
you can say that the size of the share 1080Tis get is larger than 1070, I agree, but it is like more than 6 times the share I get with 1080Tis. so considering the solution power of two, 6 times is much bigger than %60 solution power in between these two.
I've tried this while mining BTCG in suprnova and MPH. I think this is because the target difficulty setting.
Honestly, I think you'll need to wait for a payout to see if you can see the earnings differences - looking at hash or share rate alone (particularly at the pool level!) to compare completely different rigs isn't going to be accurate. Earnings per rig is pretty much the only way to determine anything.
That said, if you're looking to have the same target difficulty across all your rigs, you might try running a mining proxy. Makes things slightly more efficient networking wise as well. I have recently created one that works with
equihash (and other algos/coins) called aiostratum-proxy (see my signature as well).
