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Author Topic: 3x7950 or 2x7970?  (Read 869 times)
Ryu.Hayabusa
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April 08, 2013, 07:10:06 AM
 #1

I'm looking at adding more video cards to my rig, but I am going to be adding them one by one instead of all at once.

Based on price and hashrate for scrypt, I'm thinking the better way to go is 3x7950s (~$960) since I've seen others able to get about 700khash/s with overclocking.  What do you think?

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Invest0r
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April 08, 2013, 07:10:39 AM
 #2

I'd go for the 7950's.

Speculating..
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April 08, 2013, 07:19:24 AM
 #3

3x7950s (~$960)

did you miss the newegg sale?

rgzen
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April 08, 2013, 07:23:37 AM
 #4

What about get a 7990?
Ryu.Hayabusa
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April 08, 2013, 09:29:34 AM
 #5

@Invest0r: Thanks for the input. Smiley

@Starlightbreaker: What were they selling for?  I always seem to miss good opportunities. Sad

@rgzen: Haven't seen any for sale yet, and I'm sure the price would be insane.

If I was able to help you out, please consider donating.  Any amount is greatly appreciated! Smiley         
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Caesar V
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April 08, 2013, 11:07:20 AM
 #6

Is the investment worth it? What are your earning predictions?
juve4v
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April 08, 2013, 01:13:51 PM
 #7

7950s all the way ...for me at least .I  can say these cards seem to perform very good especially in scrypt . On the other hand I seen many people complaining about the new 7970s  locked or underperforming.
Ryu.Hayabusa
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April 08, 2013, 01:21:52 PM
 #8

@Caesar V: With all 3 + my 5870 I already have, currently it would be ~$60/day or 12.6 coins/day.  If it pays for itself in 16 days ill be more than happy. Cheesy  Even with just 1 which I am planning to start with at first will pay for itself in ~13 days.

@juve4v: Thanks for the info. Smiley

If I was able to help you out, please consider donating.  Any amount is greatly appreciated! Smiley         
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Ryu.Hayabusa
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April 10, 2013, 02:21:30 PM
 #9

First 7950 on the way, glad I waited until I did since the price dropped $30. Smiley

Thanks again everyone!

If I was able to help you out, please consider donating.  Any amount is greatly appreciated! Smiley         
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tenakha
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April 10, 2013, 02:58:37 PM
 #10

Can cards be mixed?

I have a 7850 which I am going to use for LTC mining. My board can take another card.
Can I put in a 7950 alongside it or do both cards *have* to be the same?
I can get a 2nd 7850 fairly easily.

Thanks.

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pro
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April 10, 2013, 03:15:08 PM
 #11

jap should work.

i got 1x 6950 und 1x 6850 on the same board and they are mining quite well Smiley

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Ryu.Hayabusa
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April 10, 2013, 03:42:17 PM
 #12

I believe the only time that it matters is if you're doing crossfire, but even then I think certain ranges of cards can be mixed, like a 5850 and 5870 for example.  For mining it doesn't matter if you mix.

If I was able to help you out, please consider donating.  Any amount is greatly appreciated! Smiley         
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