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Author Topic: 3 x 6870 or 2 x 6970  (Read 972 times)
veblen
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June 23, 2011, 05:54:12 PM
 #1

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!
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cothoms
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June 23, 2011, 06:25:46 PM
 #2

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)

Not a miner.  An investor, speculator, and enthusiast.
oldman
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June 23, 2011, 11:55:28 PM
 #3

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. Smiley
pollus
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September 01, 2011, 07:53:03 PM
 #4

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 !
GernMiester
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April 16, 2012, 02:36:40 AM
 #5

My 2 HD6870 get low 290's MH/s
My 1 HD 5870 gets 408MH/s
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