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Author Topic: 5770 + 6770, good idea?  (Read 2508 times)
crazy987
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July 20, 2011, 11:36:12 AM
 #1

I want to expand my current computer which is riggerd with a MSI Radeon HD5770 1GB PCI-E.
I was thinking about the Sapphire Radeon HD6770 1GB Vapor-X.
So i then have a crossfire setup for gaming, and 2 VGA's for mining with +/- 350mhash.

However, its been a while since i read about CF.
But will this work or will it give conflicts since its a completely new serie?
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deslok
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July 20, 2011, 11:40:56 AM
 #2

1 you don't want to use crossfire for mining it degrades performance.
2 6000 series cards perfrom worse for bitcoin mining than 5000 series cards in general.
you're better off getting a 5830 or better, you'll get 300+mhash from that card alone

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crazy987
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July 20, 2011, 11:46:06 AM
 #3

1 you don't want to use crossfire for mining it degrades performance.
2 6000 series cards perfrom worse for bitcoin mining than 5000 series cards in general.
you're better off getting a 5830 or better, you'll get 300+mhash from that card alone

that might be true, but as i stated its also for gaming.
Plus i cant get a 5830 new, only second hand
and im only buying new stuff, never second hand
deslok
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July 20, 2011, 10:40:40 PM
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on that note then depending on prices i'd lean more towards a 69xx card instead of a 6770. unfortunatly you're not going to be able to run mixed generations like that in crossfire, i'm going to refer you to amd's own chart
http://sites.amd.com/PublishingImages/Public/Graphic_Illustrations/WebBannerJPEG/AMD_CrossfireX_Chart_1618W.jpg

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smoki
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July 21, 2011, 02:33:39 AM
 #5

6770 cards are just re-labeled 5770s, apart for some minor bios differences. So yes, you can Crossfire them, as the chart linked by deslok also confirms.

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