Ninjastic
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Re: My Scrypt Miner, Best Settings for 7850?
by
mikeybit
on 27/12/2013, 21:25:51 UTC
Quote from: robocopRufio on December 27, 2013, 08:31:18 PM
Quote from: mikeybit on December 27, 2013, 07:34:22 PM
Quote from: robocopRufio on December 27, 2013, 06:43:03 PM
Quote from: mikeybit on December 27, 2013, 06:35:31 PM
I had my 7850s running with --gpu-engine 1050 --gpu-memclock 1450

That would get me ~380 kh/s each

Not sure about actual watt consumption since I didn't have a kill-a-watt

Can you elaborate please? What exactly do those commands accomplish? The memclock command overclocks the GPU right? How about the gpu-engine command? What did you have for intensity? Also, any thoughts on the --thread-concurrency command?

Does anyone have a good resource for learning the cgminer settings?

Thanks!

The memclock controls the speed of the memory on the card. The engine controls the core speed. 

I usually run all of my cards at I 19, but I'd play around with that and see what works for you .

Concurrency should be 64*memory bus width => so 64 * 256 = 16192 (I typically run 16000)
http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units#Southern_Islands_.28HD_7xxx.29_Series

Thanks mikeybit, good info! Do you know if running the cards at your settings will severely decrease the lifespan of the cards?

Assume that any overclocking will decrease lifespan, not sure how severe it is. I think keeping temps down is very important to lifespan.  I always kept them around 70-75*C.  I don't have 7850's anymore, but the ones I owned, I ran for 6+ months without any hiccups at those settings.