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 Post subject: Will I notice much of a difference? 2 gtx580 vs 3.
PostPosted: Fri Jun 17, 2011 9:18 pm 
Little Foot
Little Foot

Joined: Mon Apr 28, 2008 7:46 pm
Posts: 106
Location: Texas
Here are my specs.
asus rampage 3 extreme
17 950 running at 3.7
12gb running at 1291
1200 watt corsair
2 gtx 580 sli
3 lg 27" running at 5924x1080.

Frame rates seem fine and not sure what I am getting but run v sync most of the time. So will I actually see much of a difference in my games. Play mostly fps like bad company 2, black ops, crysis 2.


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 Post subject: Re: Will I notice much of a difference? 2 gtx580 vs 3.
PostPosted: Fri Jun 17, 2011 10:44 pm 
Little Foot
Little Foot
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Joined: Thu Feb 05, 2009 11:46 am
Posts: 162
chef7734 wrote:
Here are my specs.
asus rampage 3 extreme
17 950 running at 3.7
12gb running at 1291
1200 watt corsair
2 gtx 580 sli
3 lg 27" running at 5924x1080.

Frame rates seem fine and not sure what I am getting but run v sync most of the time. So will I actually see much of a difference in my games. Play mostly fps like bad company 2, black ops, crysis 2.


The human eye can only perceive 60 frames a second, so unless you're super human, probably not.


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 Post subject: Re: Will I notice much of a difference? 2 gtx580 vs 3.
PostPosted: Sun Jun 19, 2011 3:54 pm 
Little Foot
Little Foot

Joined: Sun Aug 22, 2010 12:53 am
Posts: 105
Yes and no. The extra card will give you more FPS in some games, others not so much. There have been alot of reviews where 3 GPU's can actually degrade performance and get you less FPS. Do a search for 6990+6970 vs SLI 580 and you'll see what I'm talkin about.

The 3gb 580's might help you out because of the higher ram amount for that huge resolution.


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 Post subject: Re: Will I notice much of a difference? 2 gtx580 vs 3.
PostPosted: Sat Jun 25, 2011 1:09 pm 
[Team Member]
[Team Member]

Joined: Sat Jun 26, 2004 4:31 am
Posts: 11078
Location: Home Sweet Home
All the articles I read say don't bother, the small gain isn't worth the money spent.

Nasty


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 Post subject: Re: Will I notice much of a difference? 2 gtx580 vs 3.
PostPosted: Mon Jul 11, 2011 6:46 pm 
8086
8086

Joined: Mon Jul 11, 2011 6:07 pm
Posts: 8
VetteV12 wrote:
Yes and no. The extra card will give you more FPS in some games, others not so much. There have been alot of reviews where 3 GPU's can actually degrade performance and get you less FPS. Do a search for 6990+6970 vs SLI 580 and you'll see what I'm talkin about.

The 3gb 580's might help you out because of the higher ram amount for that huge resolution.


There are some games/settings where the the extra VRAM would come in handy, but 1.5GB is good for most games up to 5760X1080 4X16X. I've been switching back and forth between a GTX590 and 2GB GTX560Ti SLi for this resolution.

As for the OP, the scaling on a third GTX580 will be much lower than on two, around another 30%. I personally don't think a third 1.5GB GX580 is your best upgrade path given your high resolution. I'd go 3 X 2.5GB GTX570 if you're looking to stay with NVIDIA and surround.


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