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Help With SLI/Xfire and 680 vs 7970

Last response: in Graphics & Displays
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November 21, 2012 10:03:34 AM

Hey guys,

I have just run into a problem with my graphics cards. At first, I was going to go for a 7970 Lightning Edition and fit it into my phantom 410 with the hdd cages removed. But I just realized, the 7970 Lightning does not have Dual-Link DVI, which means I can only go up to 1920x1200. I plan to SLI/Xfire in the future and play on 3 screens, but a single link DVI will not work. For some reason, my local store sells the 680 for like $50 more. But the 680s have the dual link dvi and I might just play on 1 screen with 3D and get a 120hz monitor. I know that eyefinity is better than surround, but nvidia 3D is better than AMD 3D. The only models my local store sells for the 7970 is the HIS X2 Turbo 7970 and the Lightning Edition. But they have the Gigabyte 3X Windforce 680, the ASUS 680 DC2T and the MSI 680 Lightning Edition. The 680 Lightning is the most expensive and almost $100 more than the 7970. I wanted to get the 7970 instead of the 680 because I will overclock and having 1GB more memory will be better for Xfire/SLI and in 3 screens (reason being, even if Xfire, the data is transfered to both cards so if you have 2x 2gb cards, you actually still have 2gb in total because the computer sends the same amount of data to both cards). Could you guys advice me on which Graphics card to get?

I heard good reviews for the 680 DC2 Top, but it's a 3 slot card. My motherboard is the Asrock z77 Extreme4, am I going to be able to SLI that 3-slot card?

Thanks.

More about : sli xfire 680 7970

a b U Graphics card
November 21, 2012 10:09:13 AM

Cool4strenz said:
Hey guys,

I have just run into a problem with my graphics cards. At first, I was going to go for a 7970 Lightning Edition and fit it into my phantom 410 with the hdd cages removed. But I just realized, the 7970 Lightning does not have Dual-Link DVI, which means I can only go up to 1920x1200. I plan to SLI/Xfire in the future and play on 3 screens, but a single link DVI will not work. For some reason, my local store sells the 680 for like $50 more. But the 680s have the dual link dvi and I might just play on 1 screen with 3D and get a 120hz monitor. I know that eyefinity is better than surround, but nvidia 3D is better than AMD 3D. The only models my local store sells for the 7970 is the HIS X2 Turbo 7970 and the Lightning Edition. But they have the Gigabyte 3X Windforce 680, the ASUS 680 DC2T and the MSI 680 Lightning Edition. The 680 Lightning is the most expensive and almost $100 more than the 7970. I wanted to get the 7970 instead of the 680 because I will overclock and having 1GB more memory will be better for Xfire/SLI and in 3 screens (reason being, even if Xfire, the data is transfered to both cards so if you have 2x 2gb cards, you actually still have 2gb in total because the computer sends the same amount of data to both cards). Could you guys advice me on which Graphics card to get?

I heard good reviews for the 680 DC2 Top, but it's a 3 slot card. My motherboard is the Asrock z77 Extreme4, am I going to be able to SLI that 3-slot card?

Thanks.


There is a 4gb asus gtx 680 which is 2 slot. Best coolers out there in my opinion. SLI is a much smoother experience than xfire as the frame times are much lower and more regular. The 680's will use less power as well.

Any good?
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November 21, 2012 10:13:50 AM

darth pravus said:
There is a 4gb asus gtx 680 which is 2 slot. Best coolers out there in my opinion. SLI is a much smoother experience than xfire as the frame times are much lower and more regular. The 680's will use less power as well.

Any good?


Gah, my store doesn't sell the 4gb version >_< and I didn't know that the 4gb version was a 2-slot either, that would've been a great idea. And another quick question, will 750w suffice for a 680 or should I get 850? Also, should I just get a 670? If so, what model. I'm just concerned with the surround gaming, is 2gb enough?
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a b U Graphics card
November 21, 2012 10:19:58 AM

Cool4strenz said:
Gah, my store doesn't sell the 4gb version >_< and I didn't know that the 4gb version was a 2-slot either, that would've been a great idea. And another quick question, will 750w suffice for a 680 or should I get 850? Also, should I just get a 670? If so, what model. I'm just concerned with the surround gaming, is 2gb enough?


750w should be enough if you already have one but if you've not bought one i'd go 850w just to be safe.

The asus dcuII 670 is awesome. I have one myself once oc'ed it's with a few fps on the 680 oc'ed. Not worth the price difference.

2gb is plenty for surround. No-one has maxed out the 2gb to my knowlage. This included 2560x1600 displays in surround with 8xaa.

To conclude 850w with 2 asus dcuii 670's and 2gb vram is plenty. Hope that helped :D 
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November 21, 2012 10:40:36 AM

darth pravus said:
750w should be enough if you already have one but if you've not bought one i'd go 850w just to be safe.

The asus dcuII 670 is awesome. I have one myself once oc'ed it's with a few fps on the 680 oc'ed. Not worth the price difference.

2gb is plenty for surround. No-one has maxed out the 2gb to my knowlage. This included 2560x1600 displays in surround with 8xaa.

To conclude 850w with 2 asus dcuii 670's and 2gb vram is plenty. Hope that helped :D 


Alright, thanks for the replies. I think I'm just going to save the GPU money and add an SSD to my build or something. Going to get an ASUS DC2T 670 and then SLI it in the future. Getting a 120hz monitor so that I can play 3D. Quick question though, is 3D playable at 1080p/1200p or must it be 1440p/1600p?
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a b U Graphics card
November 21, 2012 11:16:32 AM

Cool4strenz said:
Alright, thanks for the replies. I think I'm just going to save the GPU money and add an SSD to my build or something. Going to get an ASUS DC2T 670 and then SLI it in the future. Getting a 120hz monitor so that I can play 3D. Quick question though, is 3D playable at 1080p/1200p or must it be 1440p/1600p?


Sounds like a good idea. 1 670 is great in 1920x1200. Not sure about 3d in some more demanding games. That might be an issue.

3d is playable at 1080/1200 but I don't think there are 1440/1600 3d monitors available and if they are they will cost a bomb
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November 21, 2012 11:25:35 AM

darth pravus said:
Sounds like a good idea. 1 670 is great in 1920x1200. Not sure about 3d in some more demanding games. That might be an issue.

3d is playable at 1080/1200 but I don't think there are 1440/1600 3d monitors available and if they are they will cost a bomb


Apparently, the store is on sale and the GTX 680 Windforce is only $25 more expensive than the ASUS 670 DC2T, should I go for that, or just stick to the DC2T?
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a b U Graphics card
November 21, 2012 11:31:19 AM

Cool4strenz said:
Apparently, the store is on sale and the GTX 680 Windforce is only $25 more expensive than the ASUS 670 DC2T, should I go for that, or just stick to the DC2T?


The windforce coolers tend to be loud in my experiance and the performance difference is tiny. I have the asus and even If I crank the fan to 70% it's still very quiet. On auto I have never heard it and it's never broken 55c even when oc'ed to 1250mhz.
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November 22, 2012 12:59:43 AM

darth pravus said:
The windforce coolers tend to be loud in my experiance and the performance difference is tiny. I have the asus and even If I crank the fan to 70% it's still very quiet. On auto I have never heard it and it's never broken 55c even when oc'ed to 1250mhz.


I have a bit more money, would it be a better choice to get a 7970? I heard that the new 12.11 drivers are insane, and they come with 3 games too.
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a b U Graphics card
November 22, 2012 5:58:57 AM

Cool4strenz said:
I have a bit more money, would it be a better choice to get a 7970? I heard that the new 12.11 drivers are insane, and they come with 3 games too.


They are a bit more power hungry but I wouldn't crossfire with them as it's not a smooth experience.

For a single card a 7970 has the edge in pretty much as many as the 680 does maybe more but they are overall close. At the moment a single 7970 is a very good deal but if you want a multi GPU setup in the future then 680's in SLI is still king.
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November 22, 2012 7:50:06 AM

darth pravus said:
They are a bit more power hungry but I wouldn't crossfire with them as it's not a smooth experience.

For a single card a 7970 has the edge in pretty much as many as the 680 does maybe more but they are overall close. At the moment a single 7970 is a very good deal but if you want a multi GPU setup in the future then 680's in SLI is still king.


Alright, I guess because my store doesn't sell 2-slot 680s except for the MSI Lightning (which is too expensive) and the Windforce (which you said is a bit loud). The clear winner is the 670 DC2T then, going to SLI in the future. Any overclocking tips and will a Corsair AX850 suffice for my needs? Also, will I be able to SLI on this motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E168... ?
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a b U Graphics card
November 22, 2012 7:59:26 AM

a corsair ax850 is a great choice and will be more than enough and that is a good motherboard which support up to quad sli but can really only used dual SLI because of its 2 pcie 3.0 slots.

Good luck with your build. You won't be disappointed especially with those asus 670's.

Turn the power limit all the way up and slowly increase the core clock by 10mhz until it fails. Lot's of benchmarks and small adjustments.

Hope i've helped.
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November 22, 2012 9:23:06 AM

Best answer selected by Cool4strenz.
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