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Performance of GTX 580 SLI in gaming...

post #1 of 35
Thread Starter 
Hi guys,

I have recently bought 2 GTX 580 to do SLI......

Can you guys give me a full explanation of advantages and performance increase of SLI on the 580 ??

I also read only that a game uses only 1.5 GB of the Memory of one card in SLI ??? Is it true ??
Also please comment whether I should retain the Asus GTX 580 to do SLI or return it to get MSI GTX 580 Lightning ? ( As I havn't broken the seal, so my local reseller will take it back for another )

Thanks Guys,
Dev....
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post #2 of 35
Get the Lightnings, for sure.

If you can afford them.

And yes, the memory doesn't combine, so if you have two 1.5GB cards you will only have 1.5GB in SLI.
    
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post #3 of 35
The MSI Lightning is a beastly card, but it openly exhaust hot air into your case, so if you have good cooling thats the best option to go for - vram is frame buffer memory, each GPU has to use its on frame buffer memory, thus 580's only have 1.5GB of frame buffer.
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post #4 of 35
Well, for one, games will bow down in fear. Two, you still only have 1.5Gb. Three, any 580 will SLI with any 580, but MSI Lightning's generally overclock and cool better.
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post #5 of 35
Thread Starter 
So can you fully explain me the advantages of GTX 580 2-way SLI over one 580 ??
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post #6 of 35
Quote:
Originally Posted by devdeep View Post
Hi guys,

I have recently bought 2 GTX 580 to do SLI......

Can you guys give me a full explanation of advantages and performance increase of SLI on the 580 ??

I also read only that a game uses only 1.5 GB of the Memory of one card in SLI ??? Is it true ??
Also please comment whether I should retain the Asus GTX 580 to do SLI or return it to get MSI GTX 580 Lightning ? ( As I havn't broken the seal, so my local reseller will take it back for another )

Thanks Guys,
Dev....
the msi gtx580 lightning is the best gtx580 available,so go with msi,
Quote:
Originally Posted by devdeep View Post
So can you fully explain me the advantages of GTX 580 2-way SLI over one 580 ??
human eye can notice upto 60fps,when u get 60+ above fps....u wont notice the difference,I think a single gtx580 is enough.....if u run benchmarks then go for gtx580 sli
Hope this helps
Edited by Aniket - 4/28/11 at 12:03pm
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post #7 of 35
Quote:
Originally Posted by devdeep View Post
So can you fully explain me the advantages of GTX 580 2-way SLI over one 580 ??
Up to 100% more power than a single one?

I think that sums it up pretty good.
    
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post #8 of 35
Thread Starter 
Quote:
Originally Posted by Aniket View Post
the msi gtx580 lightning is the best gtx580 available,so go with msi,
btw,
human eye can notice upto 60fps,when u get 60+ above fps....u wont notice the difference,I think a single gtx580 is enough.....if u run benchmarks then go for gtx580 sli
Hope this helps
Thanks for the reply aniket...
Also, if a game uses 1.5 GB of VRAM, So what will happen to the other 1.5 GB ???
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post #9 of 35
I have the Galaxt GTX 580 that already has that awesome Arctic Accelero Xtreme Plus cooler on it. And I only paid $435.00 for it with the promo code and a $25 RiM. The temp in m,y Azza Solano 1000 case has not gone up becaause of it either.
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post #10 of 35
Quote:
Originally Posted by BallaTheFeared View Post
Up to 100% more power than a single one?

I think that sums it up pretty good.
Wouldn't it halve his minimum framerates? I read some SLI/Xfire comparison on Tom's Hardware ages ago that showed something like this due to latency lag between 2 cards. Averages/maximums doubled, minimums halved.

Can anyone confirm this?
    
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