Quote from: P00P135 on July 27, 2017, 03:07:25 AM

Quote from: Tarv on July 27, 2017, 02:27:11 AM

Quote from: Claymore on July 08, 2017, 08:10:34 PM

It depends on GPU, settings, selected coin, it's price and net diff. For example, for SIA on stock 1070 ccminer shows 1400MH/s. In dual mode in v9.7 I get 650MH/s SIA (so 45% of pure SIA speed) with only 2% ETH lost (about 25.8MH/s instead of 26.4MH/s).
DCR speed is not so good, agreed.

After seeing this comment I spent some time today testing my 1070's with different -dcri settings. I wasn't getting anywhere near that SC hash. About 30.6mh/s eth and 309mh/s sia with default -dcri 30.

While testing on my main PC, I came to the conclusion that a -dcri 60 was about the best trade off for loss of ETH hash vs. gains of SC hash. I was now getting around 29.5mh/s eth and 660mh/s sia.

I moved these new settings to the mining rig and the ETH hash just tanked. Checking around I noticed that the cards wanted to draw more power with this new -dcri setting. The 1070's in my rig are overclocked and the power was decreased. Originally when I set up the rig, I tested the miner with ETH only and found I could get away with 75% power on the cards with no change to hash.

Increasing the -dcri seems to require more power. I tried pushing the power to 112% and the hash rates just flew. 29.6mh/s and 693mh/s respectively.

Seems like quite a lot more power for that extra SIA hash. Just posting as it's something people might want to consider.

TL;DR

-dcri 30, 75% power = 30.6mh/s eth, 307mh/s sia
-dcri 30, 112% power = 30.9mh/s eth, 309mh/s sia

-dcri 60, 75% power = 24.5mh/s eth, 490mh/s sia
-dcri 60, 112% power = 29.6mh/s eth, 693mh/s sia

Did you try experimenting with core clocks while dual mining? I found 75dcri with a higher core clock for my 1070's gave me higher results for both ETH/SIA at the cost of even more power. In the end I just decided dual mining wasnt worth the added power, heat, and stress along with the 2% eth tax.

I didn't this time, but as before I found that core didn't really effect ETH hash. I had my core underclocked to reduce power/heat.

Good point about the extra tax, especially since I was running with low SIA hash. Will have to think about it some more.

On the other hand, mining on my main PC I don't mind power/heat so I'll be playing with my OC's a bit more.