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Title: HD 7870 tahiti 430kh/s ltc mining stable Post by: lock09 on January 11, 2014, 10:51:32 AM Hi,
I thought of sharing my hd7870 (tahiti LE = reduced hd7900 series chip :) ) configuration This is with guiminer so thread concurrency = 12404 gpu threads = 1 worksize = 256 intensity = 19 This is basically the hd7850 high preset in guiminer but with -i 19 and you need core clock @ 925 no more or less and mem clock @ 1500 vcore = stock I'm pretty sure we can get more from this chip with oc I'll try later anways, 428~430kh/s is good for me. I'd recommend manually setting the fan to 60% if you don't want the chip to get too hot as it doesn't go over 50% on auto and it lets it get into the 70c's NOTE you wont be able to use your computer with these settings, use the hd7870 low preset = 335kh/s stable with core clock @ 975 during the day time :) Feel free to donate if this helped :) LTC = LL6Gs3qYE2nGKi7vfxyMEVUzEmmDii5xHK BTC = 188Bjbf1tAGmCKJxWQ77N5wn9z7uJpdsF5 Title: Re: HD 7870 tahiti 430kh/s ltc mining stable Post by: lock09 on January 11, 2014, 02:19:48 PM ok after a bit of researching and testing the best settings i've found for performance/noise/power economy
core clock = 890 vcore = 0.943 memory = 1500 stock power limit or power control = -15% fan = 50% my system seems to consume 80 watts less than stock 180w vs 260w with power limit @ -15% that makes 430kh/s for a 100 watts ;D will post about average temperature later but it seems to be around 50c ;D |