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Title: 3 x 6870 or 2 x 6970 Post by: veblen on June 23, 2011, 05:54:12 PM Since I can't yet post in the Hardware section, here I am.
Given that the price of 58XX cards has gone off the charts, I figure I should stick to the current gen and hopefully be able to sell them down the road. I can currently either get three 6870s or two 6970s. I would add a 6990 to my dilemma but they are out of stock. Which would be more cost-effective, in terms of MHash/power consumption? Thanks! Title: Re: 3 x 6870 or 2 x 6970 Post by: cothoms on June 23, 2011, 06:25:46 PM How about 5830s? 300 MH/s for $109 (retail). They are currently out of stock, but I am selling a pair of brand new ones here:
http://forum.bitcoin.org/index.php?topic=21252.0 My prices are significantly lower than other users who are selling their 5830s (especially since mine have never been used) Title: Re: 3 x 6870 or 2 x 6970 Post by: oldman on June 23, 2011, 11:55:28 PM 3 x 6870 are higher on p/p but you 2nd card will be hotted like hell cause it dosent have air to breathe. So you have to deal with it or do something to cool it.
. 2 x 6970 are high Mhash/s also, you can save a slot for something and they will work well if you have good 6970 ( non ref ? ) anyway its you'r choice man. :) Title: Re: 3 x 6870 or 2 x 6970 Post by: pollus on September 01, 2011, 07:53:03 PM 2 x 6970 seems to be taking less power and the ghash rate is a little bit better there.
But it is up to you. Cheers ! Title: Re: 3 x 6870 or 2 x 6970 Post by: GernMiester on April 16, 2012, 02:36:40 AM My 2 HD6870 get low 290's MH/s
My 1 HD 5870 gets 408MH/s |