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Title: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: aakashkumar on July 21, 2013, 08:34:25 AM I have Plan to Build Mining Rig With 4*SAPPHIRE 100311-3L Radeon HD 6970 2GB
and i have few questions , 1. Can I crossfire 4*6970 Here the link http://www.newegg.com/Product/Product.aspx?Item=N82E16814202035 2. Am expecting 1600Mhash/s or kHash/s some specifications : SAPPHIRE 100311-3L Radeon HD 6970 2GB 256-bit GDDR5 PCI Express 2.0 x16 CrossFireX Support Video Card core clock : 880MHz Memory : 5500MHz please Post your suggestion , have to order Today ;D Title: Re: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: darksoft on July 21, 2013, 11:02:54 AM Use 7950s, lower power, faster cards. Crossfire does nothing for you. And you should be getting better hashing out of the 6970 - I get 475k-485k/scrypt on mine using stock numbers.
Title: Re: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: aakashkumar on July 22, 2013, 01:47:39 AM 7950 900MHz will give 520 kHash/s
but 6970 880MHz will Give 400 kHash/s per Card ? is this correct / If i Cross fire 4X6970 , will i get 1600 kHash/s ? is this correct ? ??? ??? ??? Title: Re: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: SirMintALot on July 22, 2013, 03:57:46 PM Don't crossfire your cards, it will slow them down. Just put the four cards in your rig without crossfire cable attached.
Title: Re: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: jamesc760 on July 22, 2013, 05:07:44 PM I have a Sapphire 6950 and it does 450 Kh on average, stock no oc/uv. But it runs a bit hot, about 75 C at 60% fan in air-conditioned room. Oh, it eats electricity like a monster and makes noise like a monster too. Will never ROI anytime soon but I don't care about that.
Title: Re: Mining Rig with SAPPHIRE 100311-3L Radeon HD 6970 2GB Post by: darksoft on July 22, 2013, 08:36:43 PM 7950 900MHz will give 520 kHash/s but 6970 880MHz will Give 400 kHash/s per Card ? is this correct / If i Cross fire 4X6970 , will i get 1600 kHash/s ? is this correct ? ??? ??? ??? You can pull 600k hash on a 7950 and higher plus it uses almost 100 watts less power per card. |