Why 2 video cards? One is not enough?

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Videodogg

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#1 Videodogg
Member since 2002 • 12611 Posts

Why SLI? I really dont understand someone getting a card like a 5870, which can run any game at highest settings and resolution, and then buying and installing another 5870 for SLI mode. What does this do for you?

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Too_tight_shoes

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#2 Too_tight_shoes
Member since 2009 • 2486 Posts
It does nothing really but If you put it in Crossfire mod it really shines.
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Pignas

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#3 Pignas
Member since 2009 • 95 Posts

Why SLI? I really dont understand someone getting a card like a 5870, which can run any game at highest settings and resolution, and then buying and installing another 5870 for SLI mode. What does this do for you?

Videodogg

It's optional really, however having two of the same card (or more) is gonna improve the performance. I could explain in details, but this should give you an idea.

I have 5850 and she works pretty fine. ^^

Edit: I'm sorry, but using SLI on ATI Graphics card isn't gonna work. Forgot to mention that. ^^;

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Videodogg

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#4 Videodogg
Member since 2002 • 12611 Posts
[QUOTE="Pignas"]

[QUOTE="Videodogg"]

Why SLI? I really dont understand someone getting a card like a 5870, which can run any game at highest settings and resolution, and then buying and installing another 5870 for SLI mode. What does this do for you?

It's optional really, however having two of the same card (or more) is gonna improve the performance. I could explain in details, but this should give you an idea.

I have 5850 and she works pretty fine. ^^

Improve performance? Is something lacking with one 5870 ?
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codezer0

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#5 codezer0
Member since 2004 • 15898 Posts

Why SLI? I really dont understand someone getting a card like a 5870, which can run any game at highest settings and resolution, and then buying and installing another 5870 for SLI mode. What does this do for you?

Videodogg
Faster performance? Able to crank up the AA/AF/in-game settings even higher on a really high res monitor? After all, you can get a 1080p monitor now for ~$200 USD or less now. A 2560x1600 monitor might not be that far off anymore. Having the speed necessary for multi-monitor gaming? As I understand it, running Supreme Commander in dual-monitor mode off a single card gets pretty damned taxing. If the second card could drive that other monitor(s) by itself, then that would take the burden off the primary GPU. At least on the ATi Side, they really support F@H, and have the other card running it full-time on the GPU. On the nVIDIA side, you could have one dedicated to PhysX and the other for graphics at least. At least, unless newer drivers split that duty up between the GPU's rendering. Because they'd rather upgrade once every four years instead of annually? To have one readily available in case one fails?
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codezer0

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#6 codezer0
Member since 2004 • 15898 Posts
Improve performance? Is something lacking with one 5870 ?Videodogg
It is if you start running 3-monitor mode like ATi pimps these things out to do.
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Pignas

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#7 Pignas
Member since 2009 • 95 Posts

[QUOTE="Videodogg"]Improve performance? Is something lacking with one 5870 ?codezer0
It is if you start running 3-monitor mode like ATi pimps these things out to do.

Right, the only problem is that having both of them can be a little expensive.

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Videodogg

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#8 Videodogg
Member since 2002 • 12611 Posts

[QUOTE="codezer0"][QUOTE="Videodogg"]Improve performance? Is something lacking with one 5870 ?Pignas

It is if you start running 3-monitor mode like ATi pimps these things out to do.

Right, the only problem is that having both of them can be a little expensive.

3 monitor mode? I guess there is a whole other level of gaming out there i am not familar with at all. Happy gaming i suppose.
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Pignas

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#9 Pignas
Member since 2009 • 95 Posts

[QUOTE="Pignas"]

[QUOTE="codezer0"] It is if you start running 3-monitor mode like ATi pimps these things out to do.Videodogg

Right, the only problem is that having both of them can be a little expensive.

3 monitor mode? I guess there is a whole other level of gaming out there i am not familar with at all. Happy gaming i suppose.

Once again, they're optional. I guess in my time, having more than one screen... makes you move your head a little more. It's pretty inovative, but for me, I'm happy with just one for now, or maybe two. :P
Also because my area is too crowded.

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ironman388

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#10 ironman388
Member since 2006 • 1454 Posts

if you have an 8800gt, but cant buy a new card like a 5850 or gtx285, then you can just buy another 8800gt and you will gain lots of performance at less cost.

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SageJMP

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#11 SageJMP
Member since 2004 • 4210 Posts

let's say you have a SLI board and one 5870 right now. One year from now, you decide you want more performance but want to go the cheapest, you now have the option to just get asecond 5870 and just crossfire them and get almost double the performance rather then replacing your card with a more expensive one.

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jun_aka_pekto

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#12 jun_aka_pekto
Member since 2010 • 25255 Posts

Right, the only problem is that having both of them can be a little expensive.Pignas

That's fine. Every gamer has a price he/she are willing to pay. Even now, I'm kicking myself for picking a motherboard with only one PCI-E slot.

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Bikouchu35

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#13 Bikouchu35
Member since 2009 • 8344 Posts

To show off ofcousre :P They also offer great warmth during the winter and add numbers to your electric bill. How bout Tri-CF/Sli!!! thats even more awesome.

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JonChaoZ

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#14 JonChaoZ
Member since 2009 • 297 Posts

2 video card would increase your performance somewhat, but it really shines when using it for dual monitor mode (compared to using 1 card for dual monitors). It doesn't really have much use if your just gaming.

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MerckmanX

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#15 MerckmanX
Member since 2009 • 98 Posts

Bragging rights I guess, I never really seen the point in SLI or Crossfire even though I have a board that supports 4 gpus at once. To each his own I guess, I rather have one newer card thats faster or just as fast as two cards in Crossfire or Sli.

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04dcarraher

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#16 04dcarraher
Member since 2004 • 23857 Posts
Well when I had one 8800GT I only had a 1280x1024 monitor , then I decided to pick up another 8800GT because I planned on moving to a 22" monitor and it was on sale for $100 :) back in 2008. Glad I did, because I didnt have to spend $400 on a GTX 200 series
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#17 DJ419
Member since 2005 • 1016 Posts

I think it is cheaper in the long run to go SLI. As of now I have a single GTX 260 with an SLI capable board. I could upgrade to a 5870 for $400+, or I could get another 260 for half the price and still get a significant performance increase. It really depends on the individuals situation. I still think SLI or Crossfire is a good way to extend hardware life.

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NLahren

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#18 NLahren
Member since 2009 • 1927 Posts
to increase the performance and save money
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DigiTM73

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#19 DigiTM73
Member since 2009 • 801 Posts

I was running dual, but found it pushed out too much heat for my liking. I do have heaps of cooling in the case, but I do run an X-Fi PCI-e card and a PCI-e TV Tuner. Put all these together and there's not much breathing room. I found by having dual cards, one card was literally touching the X-Fi,,,not a good idea.
Now I'm just sticking to the single 5970 (i know it's still dual, just on 1x slot though which provides a bit more breathing room for the fans etc).

At the time I almost didn't need my microwave to cook meals, just shove the meals in the PC.:D