Radeon HD7850/7870 cgminer Config Settings (Bitcoin)

I am currently working on optimizing a new Bitcoin mining rig to get the most MHash/s out of it possible.  The mining rig currently has one Saphire Radeon HD7850 in it getting around 330MHash/s with little modifications.  Currently the settings seem to work the same for both the 7850 and the 7870.

Radeon-7850-getting-315-mhash
*Image not updated to reflect changes

7850/7870 cgminer config file example (330MHash/s)

“intensity” : “11”,
“vectors” : “1”,
“worksize” : “256”,
“kernel” : “poclbm”,
“lookup-gap” : “0”,
“thread-concurrency” : “0”,
“shaders” : “0”,
“gpu-engine” : “1100”,
“gpu-fan” : “0-85”,
“gpu-memclock” : “900”,
“gpu-memdiff” : “0”,
“gpu-powertune” : “0”,
“gpu-vddc” : “0.000”,
“temp-cutoff” : “95”,
“temp-overheat” : “85”,
“temp-target” : “75”,
“api-port” : “4028”,
“expiry” : “120”,
“gpu-dyninterval” : “7”,
“gpu-platform” : “0”,
“gpu-threads” : “2”,
“hotplug” : “5”,
“log” : “5”,
“no-pool-disable” : true,
“queue” : “1”,
“scan-time” : “60”,
“temp-hysteresis” : “3”,
“shares” : “0”,
“kernel-path” : “/usr/local/bin”

If anyone has any advice and or better settings for these cards please let me know via the comments below and I will test and post results for others to see. As I make changes to the config file (if I see an increase in MHash I will post it here.

If this has been helpful to you I accept donations to my Bitcoin Wallet:
1Kho1u1Jj5Qnw4s7yNs9xK7fyvxDgR1UGW

Thank you for Donations and any input that you have on these settings.

Leave a Reply

Your email address will not be published. Required fields are marked *