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Old May 2, 2011, 07:01 AM
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Default Does anyone want a 5870 cfx 5850 thread?

So my 5850 is getting kinda dated (well not really, it still kills new games, but i like to make it sound that way so i have an excuse to upgrade). Given that I dont have sufficient funds to pick up a 6970, nor do I want to waste money picking up a 6950 only to get a negligible performance gain, i found my self stuck in an awkward spot.
After extensive deliberation, the conclusion I came to was that I should CFX a 5870 with my 5850 (for tax purposes buying a new card is more feasable than a second hand and 5850's are no longer available in Aus).

So now that I've pretty much given you guys my life story, I'm planning on running an extensive set of benchmarks and diagnostics to establish the performance gain that I can squeeze out of this combo. If anyone is interested in seeing how hybrid crossfire turns out/increasing their 5 series life span, I would be more than happy to write a review on how everything goes?
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Old May 2, 2011, 07:15 AM
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look up the 'new' 5850's that popped up,pricing should be decent,even in your neck of the woods with the goudging
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Old May 2, 2011, 07:22 AM
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I've tried all the computer retailers in my area, which have a pretty extensive range and nobody seems to offer them :(
Given that the 5870 im purchasing is only $230 (pretty cheap by aus standards) and one of the last few available, I'm not overly concerned.
That and I'm theorising when you take the clocks up on a 5850 to match the 5870, the performance overhead shouldn't be as high as what other reviewers have reported.
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Old May 2, 2011, 07:46 AM
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well,check this out : ASUS EAH 5850 TOP DirectCU Review - Page 31/32 | techPowerUp

itll get close to a 5870 at stock.
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Old May 2, 2011, 10:23 PM
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Quote:
nor do I want to waste money picking up a 6950 only to get a negligible performance gain
please clarify, you think the performance difference between a 6970 and 6950 is such that you would happy with the former and disappointed with the latter?
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Old May 4, 2011, 06:22 AM
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Thanks dangtx, but I'm pretty familiar with the performance of 5850's already: their insane cards after a sufficient overclock, and usually pretty cool as well :)
Haha Phill, yep, I'm fully aware of the 6950 having the capacity to unlock and overclock to identical (if not faster than 6970 levels) but I was totally blown away by the extent of the overclock and performance my friend managed to squish out of his MSI Lightning 6970, so yeah I would be more satisfied with the 6970 than the 6950 (despite the 6950 being the more money efficient decision).

That said, I managed to grab the 5870, they only had 2 left in stock so I'm pretty happy with that. Performance is awesome :)
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Old May 4, 2011, 07:04 AM
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actually no. 6950's usually clock less than 6970's

they chose the better chips for 6970, the lesser ones for 6950,and cut some hp
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Old May 4, 2011, 03:49 PM
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All I can say is good luck with Crossfire. When it works, it's great. When it doesn't, it's an absolute hassle.

It may bench well, but when playing current games you'll find that Crossfire usually isn't supported until quite a few months later.
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Old May 6, 2011, 03:17 AM
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^Is there any games in particular? I am tri-crossfire and waiting for my cards to arrive.
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Old May 6, 2011, 11:37 AM
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I've been running 2x 5870s for a while now and haven't had any issues regarding X-Fire. I did try a 5870 - 5850 X-fire just to see what kind of performance I would get, but honestly the 5850-5870 at stock clocks was pretty much on par with a single 5870 with a small OC. I've got my 5870's water cooled and OC'd to 1000/1300 @ 1.3v and I see no need to upgrade until Nvidia 600 series :)
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