Roadhog2k5



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Full MemberActivity: 131Merit: 100 3x7970 Mining Results. January 10, 2012, 05:57:58 AM

Last edit: February 01, 2012, 02:44:58 AM by Roadhog2k5 #1 I have 3 7970's that will be here tomorrow(if the fedex plane/truck doesn't crash and burn or a herd of angry hamsters hijack it and eat my gpus...).



I will post what hash rates I get with them along with power draw figures.



Any special requests post them here.



Just reserving this for now. :p



EDIT:



Wattage is measured at the wall plug as total system draw. Subtract the 224 Watts of the system idle from the total then divide by 3 to get individual 7970 power draw. Mining results are of 7970 power draw only. My power supply has about 92% efficiency but I did not factor that into the results.







Three 7970's:



System Idle: 224 W

Mining: 925/1375mhz, 1.17v, 696W - 1650mh/s

Mining: 925/340mhz, 1.17v, 595W - 1650mh/s

Mining: 925/340mhz, 880mv, 426W - 1650mh/s

Mining: 925/340mhz, 865mv, 411W - 1650mh/s

Mining: 925/150mhz, 865mv, 400W - 1650mh/s



Water Cooling:

Mining: 1200/150mhz, 1.17v, 752W - 2100mh/s

Mining: 925/1375mhz, 1.17v, 572W - 1650mh/s

Mining: 925/340mhz, 1.17v, 515W - 1650mh/s

Mining: 925/340mhz, 880mv, 346W - 1650mh/s

Mining: 925/340mhz, 865mv, 336W - 1650mh/s

Mining: 925/150mhz, 865mv, 329W - 1650mh/s







Single 7970:



System Idle: 224 W

Mining: 925/1375mhz, 1.17v, 232W - 550mh/s

Mining: 925/340mhz, 1.17v, 198W - 550mh/s

Mining: 925/340mhz, 880mv, 142W - 550mh/s

Mining: 925/340mhz, 865mv, 137W - 550mh/s

Mining: 925/150mhz, 865mv, 133W - 550mh/s



Water Cooling:

Mining: 1200/150mhz, 1.17v, 251W - 700mh/s

Mining: 925/1375mhz, 1.17v, 190W - 550mh/s

Mining: 925/340mhz, 1.17v, 171W - 550mh/s

Mining: 925/340mhz, 880mv, 115W - 550mh/s

Mining: 925/340mhz, 865mv, 112W - 550mh/s

Mining: 925/150mhz, 865mv, 109W - 550mh/s







EDIT2: Just remember that this is the wattage difference from idle wattage to load wattage(btc mining). Your results may vary.

EDIT3: Updated with watercooling results.

goxed



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Mining hardware dev and reviewer.







LegendaryActivity: 1918Merit: 1000Mining hardware dev and reviewer. Re: 3x7970 Mining Results. January 10, 2012, 06:42:21 AM #2 Power draw at the plug please! Looking to review Bitcoin / Crypto mining Hardware.

jjiimm_64



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LegendaryActivity: 1876Merit: 1000 Re: 3x7970 Mining Results. January 10, 2012, 06:54:03 AM #3

this will be good as DeathandTaxes has triple 5970 rigs to compare with. All my 5970 rigs are 4 per, except one (3x5970 + 1x6950). 1jimbitm6hAKTjKX4qurCNQubbnk2YsFw

ummas



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Sr. MemberActivity: 274Merit: 250 Re: 3x7970 Mining Results. January 10, 2012, 10:22:08 AM #4

looking forward





@jjiimm_64

Summary, haw fast is Yours quad 5970 ?

EDIT: NVM - got it from BFL thread - nice, i got 2.5GH from just 6 GPU @Roadhog2k5looking forward@jjiimm_64Summary, haw fast is Yours quad 5970 ?EDIT: NVM - got it from BFL thread - nice, i got 2.5GH from just 6 GPU

sadpandatech



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Hero MemberActivity: 504Merit: 500 Re: 3x7970 Mining Results. January 10, 2012, 12:11:25 PM #5 Quote from: jjiimm_64 on January 10, 2012, 06:54:03 AM

this will be good as DeathandTaxes has triple 5970 rigs to compare with. All my 5970 rigs are 4 per, except one (3x5970 + 1x6950).



We should not really compare these to 5970's though, being that 5970's are dual core and for whatever funky reason AMD did not keep the same numbering convention for 6970 and 7970, which are both single core. I would be very curious to see these compared to 3x5870 and 3x6970 though.



And also, make sure you kill-a-watt at wall on the machine before you run the cards as well. Would be nice to simulate some very light load on it with and without the cards before mining as well.





cheers We should not really compare these to 5970's though, being that 5970's are dual core and for whatever funky reason AMD did not keep the same numbering convention for 6970 and 7970, which are both single core. I would be very curious to see these compared to 3x5870 and 3x6970 though.And also, make sure you kill-a-watt at wall on the machine before you run the cards as well. Would be nice to simulate some very light load on it with and without the cards before mining as well.cheers If you're not excited by the idea of being an early adopter 'now', then you should come back in three or four years and either tell us "Told you it'd never work!" or join what should, by then, be a much more stable and easier-to-use system. - GA

It is being worked on by smart people. -DamienBlack

DeathAndTaxes

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Gerald Davis







DonatorLegendaryActivity: 1218Merit: 1007Gerald Davis Re: 3x7970 Mining Results. January 10, 2012, 01:51:11 PM #6 Not sure if you want to do all this but.



Kill-a-watt the following:

idle w/ only one card installed

idle w/ all three cards installed

full load w/ 3 card mining @ stock

full load w/ 3 cards mining @ highest stable overclock



As far as 5970 comparison yeah AMD changed numbering scheme. The 5000 series direct equivalent is the 5870.



5870, 6970, 7970 = highest single GPU card

5970, 6990, 7990 = dual GPU card



Still the 5970 is the king of the hill in terms of price, density, and efficiency right now so it will be an interesting comparison.



Roadhog2k5



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Full MemberActivity: 131Merit: 100 Re: 3x7970 Mining Results. January 10, 2012, 07:55:45 PM #7 Quote from: DeathAndTaxes on January 10, 2012, 01:51:11 PM Not sure if you want to do all this but.



Kill-a-watt the following:

idle w/ only one card installed

idle w/ all three cards installed

full load w/ 3 card mining @ stock

full load w/ 3 cards mining @ highest stable overclock



As far as 5970 comparison yeah AMD changed numbering scheme. The 5000 series direct equivalent is the 5870.



5870, 6970, 7970 = highest single GPU card

5970, 6990, 7990 = dual GPU card



Still the 5970 is the king of the hill in terms of price, density, and efficiency right now so it will be an interesting comparison.





That's simple enough. That's simple enough.