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Eyefinity makes me a sad Panda - Page 2

post #11 of 23
What does any of this have to do with eyefinity itself?
post #12 of 23
oh yea if you pair together two cards in x16 x4 crossfire you would not see a lose in performance if you were to do a crossy setup with x16 x16 the performance lost between the two is like 1% or something so your mobo is fine!
post #13 of 23
I'm considering buying a 6950 and doing the BIOS unlock on it with my tax return and slowly start buying my monitors for an eyefinity setup. I just cant push myself enough to do it since I dont really need 3 monitors. Plus the power button on my case is jacked up so I also want to buy a nice case with it instead. Hope you get yours soon
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post #14 of 23
If you want cheap eyefinity monitors look for hannsG or I-Inc monitors. You could get 3 28inch for a eyefinity setup for less than 800 bucks with a the 1920x1200 resolution your looking for. No matter which way you go, an eyefinity or nvidia surround setup isn't going to be cheap.
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post #15 of 23
Quote:
Originally Posted by pmrballer123 View Post
oh yea if you pair together two cards in x16 x4 crossfire you would not see a lose in performance if you were to do a crossy setup with x16 x16 the performance lost between the two is like 1% or something so your mobo is fine!
x4 will bottleneck a high performance card, especially as the resolutions go up.
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post #16 of 23
Thread Starter 
Quote:
Originally Posted by Poisoner View Post
What does any of this have to do with eyefinity itself?
I guess just me lamenting that this awsome setup cost an awsome amount of money. I didnt build my rig to cater to eyefinity so it will take quite a bit of upgrading to get a really good experince with eyefinity.

Quote:
Originally Posted by pmrballer123 View Post
oh yea if you pair together two cards in x16 x4 crossfire you would not see a lose in performance if you were to do a crossy setup with x16 x16 the performance lost between the two is like 1% or something so your mobo is fine!
I've been reading otherwise. While going crossfire with x16 x4 will still net an improvement it will be ~20% worse than x16 x16 (or x8 x8/ x16 x8) xfire. Considering you only get a 50 to 75 percent increase in crossfire to begin with, take another 25 percent away from that and your spending a lot of money for not much of a gain. Its almost impossible to find a x16 x4 benchmark. Most sites just test at x4 x4 or x8 x8 to show the performance hit. It might be ok at smaller resolutions but I have no doubt it would be a serious hit at 4320*900 or higher.
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post #17 of 23
Quote:
Originally Posted by TickleMeElmo View Post
x4 will bottleneck a high performance card, especially as the resolutions go up.
Not really, this bench shows a mighty loss of 5% on a 4x lane., even @ 2560x1600
http://www.techpowerup.com/reviews/A...caling/25.html
5% isn't a big enough bottleneck for most to buy a new mobo, and while no longer new, the 5870 is by no means a low performance card.
And I'd like to investigate what Poppinj has been reading, as I couldn't find anything reffering to a 20% loss in 16x-4x, other than hearsay.
Edited by Nixuz - 2/6/11 at 11:54am
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post #18 of 23
Thread Starter 
Quote:
Originally Posted by Nixuz View Post
Not really, this bench shows a mighty loss of 5% on a 4x lane., even @ 2560x1600
http://www.techpowerup.com/reviews/A...caling/25.html
5% isn't a big enough bottleneck for most to buy a new mobo, and while no longer new, the 5870 is by no means a low performance card.
And I'd like to investigate what Poppinj has been reading, as I couldn't find anything reffering to a 20% loss in 16x-4x, other than hearsay.
The benchmark you linked to is not crossfire. I cant really find any real benchmarks with x16 and x4 either, but I have read on several forums of people who have tried it with poor results, and advise others against it.

I understand that word of mouth is not an acurate benchmark so my numbers are fooie, fine, but I've seen no one advocating good performance with x16 x4. If I'm not mistaken Nvidia will not certify a board for SLI with x16 x4 due to the poor performance. I looked here and couldnt find any anyways, and "word of mouth" is that they dont certify those types of mobos.

http://www.slizone.com/object/slizone_build_mobo.html
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post #19 of 23
Thread Starter 
Here is a review of crossfire x4 x4 - x8 x8 - and x16 x16. This is not exactly what we are trying to find out, but it does show a weakness of the crossfire x4 x4.

http://www.tomshardware.com/reviews/...8-x4,2696.html
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post #20 of 23
I'm certainly not trying to be a jerk, but I think all the "poor results" that people have been talking about have more to do with seeing the numbers 16 and 4 than with any hard data to back it up.
It's rather odd that nobody has ever posted some solid benches comparing the 2 configs, as 16x-8x and 16x-4x mobos are getting more and more common these days.
Oh. wait a minute...
Here we go;
http://www.overclock.net/nvidia/8193...6x-4x-gtx.html
and,
http://www.hardocp.com/article/2010/...16x16_vs_x4x4/
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