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Will a set of 7870's in 2-way Crossfire be enough for a 5670x1080 resolution, or maybe 2-Way SLI GTX 660?

post #1 of 14
Thread Starter 
I'm looking to get a new set of graphics cards for my new eyefinity setup. I currently have only one 6870, which works amazingly for one monitor for it's $150 pricetag, but struggles in playing anything on eyefinity. I am looking to spend under $500 for the set, two 660's (I don't believe the 6% performance boost is worth the $70 more for the Ti version), and two 7870's are around the same pricepoint on newegg. Which should I get?

Thank you for your replies.

Cheers,
-King

P.S. To Mods: Sorry if this isn't in the correct section, I am very new to this forum, and forums in general. I apologize for any inconvenience.
post #2 of 14
Anything less than GTX 670/680s or 79xx cards don't really have the video memory, memory bandwidth or GPU horsepower to power a multi-monitor setup. I'd look into getting two 7950s if you can spend a bit extra.
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post #3 of 14
Quote:
Originally Posted by KingRevoker View Post

I'm looking to get a new set of graphics cards for my new eyefinity setup. I currently have only one 6870, which works amazingly for one monitor for it's $150 pricetag, but struggles in playing anything on eyefinity. I am looking to spend under $500 for the set, two 660's (I don't believe the 6% performance boost is worth the $70 more for the Ti version), and two 7870's are around the same pricepoint on newegg. Which should I get?

Thank you for your replies.

Cheers,
-King

P.S. To Mods: Sorry if this isn't in the correct section, I am very new to this forum, and forums in general. I apologize for any inconvenience.

For 500$, go for the Sapphire 7870 XT for 235$ each.
Best cards for your budget. They are based on the Tahiti core (i.e. 7900 series).

Edit: hmmm, it wasn't out of stock a few minutes ago.....
Edited by eXXon - 3/22/13 at 4:59pm
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post #4 of 14
Thread Starter 
I don't feel that it is true that anything less than a 670 or 79xx won't be enough horse power for a triple monitor setup, as my friend brought over his 6870 and for a test on if I just simply wanted another 6870 I put it in crossfire and it actually worked very nicely, played Crysis 2 on very high settings without a hiccup. Now if you look at the charts and see just how much better the 660 or 7870 is than my 6870, you will see these cards skyrocket. The 660 alone (video proof thanks to NCIX) can handle crysis 2 on very high. So I am still convinced that this setup will work fine.

No hard feelings, this is just my opinion, thank you for your input.

Cheers,
-King
post #5 of 14
You sould if you can always go for one higher end card over 2 lower end cards
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post #6 of 14
The 7870 LE's are your best option, they overclock well, and will perform better than a 7870 for not much more (the powercolor version is actually less than some of the 7870 ghz). Two of these overclocked will be more than plenty.
post #7 of 14
Quote:
Originally Posted by KingRevoker View Post

I don't feel that it is true that anything less than a 670 or 79xx won't be enough horse power for a triple monitor setup, as my friend brought over his 6870 and for a test on if I just simply wanted another 6870 I put it in crossfire and it actually worked very nicely, played Crysis 2 on very high settings without a hiccup. Now if you look at the charts and see just how much better the 660 or 7870 is than my 6870, you will see these cards skyrocket. The 660 alone (video proof thanks to NCIX) can handle crysis 2 on very high. So I am still convinced that this setup will work fine.

No hard feelings, this is just my opinion, thank you for your input.

Cheers,
-King

I think AndyM95 meant maxing out new games would require 670/7950 or higher which I 100% agree with.
It all depends on your budget mostly & which image quality settings you're willing to be satisfied with.

660/7870 will work fine in multi-monitor setups but might not max out all titles. (even the high-end cards struggle in some games maxed out @ high resolution)
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post #8 of 14
Quote:
Originally Posted by shilka View Post

You sould if you can always go for one higher end card over 2 lower end cards

He is not exactly talking lower end though with the 7870. 2 x 7870 is very powerful, at least 20-40% faster than the single higher cards@1080p when crossfired. His question is to if the 7870 crossfire set up will run 3 screens. My answer would be no unless you plan on using low settings, the vram required by the new games even @1920 x 1080p is quite high up the 2gb vram scale already so to include triple resolution in that would be too much to be worth it. I would as suggested go with 2 x 7950 if could afford it. 2 x 7870 for single screen from 1080p upwards to 1440p.
post #9 of 14
For $500, 2 7870 tahiti le's are your best bet. if you can squeezing another $100 in, the 7950 would be alittle better, not a whole lot, but it does have 3gb and 384 buswidth which is better for eyefinity.

was about to suggest a pair of these but they went oos.. my bro's just came in today and easily did 1200/1600 on stock boost voltage at 1.256v.

http://m.newegg.com/Product/index?itemNumber=N82E16814131487
Edited by HmoobYaj87 - 3/22/13 at 5:40pm
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post #10 of 14
Quote:
Originally Posted by Ghost12 View Post

He is not exactly talking lower end though with the 7870. 2 x 7870 is very powerful, at least 20-40% faster than the single higher cards@1080p when crossfired. His question is to if the 7870 crossfire set up will run 3 screens. My answer would be no unless you plan on using low settings, the vram required by the new games even @1920 x 1080p is quite high up the 2gb vram scale already so to include triple resolution in that would be too much to be worth it. I would as suggested go with 2 x 7950 if could afford it. 2 x 7870 for single screen from 1080p upwards to 1440p.


ammmm, he tested it with two 6870s & was satisfied, so I'm guessing the OP would be happy with an upgrade to 660s/7870s.....
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