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Tri-Fire 5870 or Crossfire 6970?

post #1 of 6
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I have a dilemma, I just got back a 5870 from XFX rma and want too get two more for Tri fire? Or should I sell my one and only 5870 to a friend that wants it for $180 Canadian and put the money I make twards crossfire 6970? By the way I won't be able to pick up the second 6970 until May/June.

Will my AX 1200W even be able to power 3 5870s at 900/1275MHz?
     
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post #2 of 6
1200w is overkill for quadfire. Go for the 6970s. The performance will be better due to the scaling. 58xx deterates fast once you hit trifire. 6xxx scaling is heaven.
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post #3 of 6
6970s.
I would however personally recommend getting 6950s; they are better in value, you save $100~, and you only lose about 10-15% real performance. Plus, from what I think, the 6950s overclock much better than the 6970s.

Tri-fire is shoddy with all sorts of GPUs.




Notice how the 5870 (2x!!) CF is about 1/3 worse than the 6950 CF. Technically, you would get less frames with the tri-5870s if you consider the unrealist + 1/3 scaling, but just for the heck of it, let's pretend GPU scaling was perfect.

3x5870s pretty much equals out to 2x6950s. Since you were planning on getting 2x6970s, you can also get 3x6950s for about the same price as 2x6970s.




TL;DR: Buy two or three 6950s.
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post #4 of 6
Get
2x hd6970 cf for sure,
amd 6series gpu scales extremely well & have almost no driver issues,
if u add 2 more hd5870 it'll be complete waste of money because the third card will scale extremely poor & hd5870 have some driver issues.
Hope this helps
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post #5 of 6
Quote:
Originally Posted by Buska103 View Post
Plus, from what I think, the 6950s overclock much better than the 6970s.

sorry u are wrong,
hd6970 & 6950,both overclock very well
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post #6 of 6
6950s for your res. Why not get 3 of them?
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