I have my rigs set to -ethi 16
What does it actually do with a higher number? Without stating the obvious!
From what I can see it gives a better hashrate but thats about it.
Can't say for high numbers, but the resulting difference between -ethi 8 and -ethi 16 is the no of submitted shares and hence - effective pool hashrate. I recall 16-vs-8 intensity gives 5-7% more shares per hour.
Claymore said above -ethi 8 increased shares is minimal, but stale shares increases a lot, so it's not profitable to use higher than -ethi 8
I see no difference in stale shares whether i use -ethi 8 or -ethi 16. I get about 6-8% stale regardless. My hashrate however is more stable and less erratic. It may be pure coincidence, but think i've found my sweet spot on my second rig, may change my first rig to this config too.
Rig 2 - 6 x RX480 Nitro+ 8gb, Adrenalin 17.12.2 drivers set in compute mode, Claymore 10.4, controlling clock, mem & voltages, running the oneclick Uber BIOS mods from 1500 straps (Polaris BIOS Editor 1.6.4)
Pulling just over 178.5Mh/s avg in the last 30 hours. 0 rejected shares. All cards run below 61c and fans run below 50% majority of the time. So nice & quiet!!
Broke my wattmeter so not sure what its pulling, but before it broke it was 840-850w.