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Topic: Optimize hashrate for 5850 - page 2. (Read 5498 times)

legendary
Activity: 1022
Merit: 1000
BitMinter
May 20, 2012, 07:45:59 AM
#4
I will overclock them but I also want to get the most out of the software

You can switch to cgminer but I doubt that this will speed up your cards. Phatk is the fastest kernel for my 5850s.
sr. member
Activity: 364
Merit: 250
May 20, 2012, 06:29:17 AM
#3
I will overclock them but I also want to get the most out of the software
legendary
Activity: 1022
Merit: 1000
BitMinter
May 20, 2012, 06:26:30 AM
#2
What's wrong with overclocking ? I run mine at 860 and 850 MHz. That's not really hard for the cards. Some folks here run them over 900. You can lower memory down to 150 MHz.
sr. member
Activity: 364
Merit: 250
May 20, 2012, 06:11:36 AM
#1
So I am trying to squeeze the most of my Sapphire Radeon 5850, using Phoenix and with these flags
-v -k phatk2 VECTORS BFI_INT AGGRESSION=8 FASTLOOP=false WORKSIZE=64
those flags seem to work the best for my 5850, currently getting 305 Mhash/s
the gpu is at 750 Mhz core clock and 400 Mhz memory clock.
Is there anything else I could do (that isn't oc) for getting more Mhash/s?
Perhaps changing some flags or adding any?
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