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I have 2 GTX 560 SC and a Asus 5970 Which one to keep?

Last response: in Graphics & Displays
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November 8, 2011 1:52:54 AM

Hello,
I recently bought the 2 GTX 560 SC on craigslist because my 5970 needed repairs, now which one do you think would be better for lets say Battlefield 3?

Edit: sorry I was editing

Edit: I have a 30" Monitor and like to play my games on 2500 X 1600 Resolution

More about : gtx 560 asus 5970

a b U Graphics card
November 8, 2011 1:59:34 AM

5970
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a c 143 U Graphics card
a b Ĉ ASUS
November 8, 2011 2:12:52 AM

Do you have the GTX 560s or the 560Ti's version ? Anyway the scaling of the 2 GTX 560 in SLI might be close or better than the scaling of HD 5970.

As long as no lots of reviews on the GTX 560 in SLI, i would say you try the HD 5970 and the GTX 560 SLI and see which perform better in high end games.

Regarding the 30" & 2500 x resolution, 1.5 GB or 2 GB of VRAM is recommended in such high resolution, since the higher the resolution in games, the more VRAM there should be since more textures & packs need to be loaded. Due to technologies such as AA, MSAA, AF, QSCAA.. those really feed on the VRAM depending on the game.
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a b U Graphics card
November 8, 2011 2:22:09 AM

Oh, sorry. 5970. Normal 560s in SLI will hit microstuttering issues.
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a c 376 U Graphics card
November 8, 2011 2:45:01 AM

kajabla said:
Oh, sorry. 5970. Normal 560s in SLI will hit microstuttering issues.

Microstuttering is not a new phenomenon. It will be present in any dual GPU setup, including an HD5970.

@OP: At reference speeds the HD5970 is going to give slightly better performance overall but the two GTX 560s will likely pull ahead in games that take good advantage of DX11 due to Nvidia's superior performance in tessellation. If you overclock then that should put the GTX 560s ahead as well.
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November 8, 2011 2:46:19 AM

Cool thanks everyone
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a b U Graphics card
November 8, 2011 2:46:39 AM

The Tom's article claims that while microstuttering does necessarily occur in all dual-GPU setups (there will always be imbalances in rendering times), it only really becomes a visible problem - the only important kind - low-to-mid-end cards.
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a c 376 U Graphics card
November 8, 2011 2:50:00 AM

The HD5970 is two HD5870s on one card. The GTX 560 and HD5870 are not very far apart in performance so if one is "low-to-mid-end" then so is the other.
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November 8, 2011 3:24:14 AM

Go to GTX 560 TI
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a b U Graphics card
November 8, 2011 4:56:40 AM

I really think the 5970 would be a better setup for the larger screen.
Do you have the time to test it out ?
A 560 is a faster clocked 460
I remember reading a lot of reviews saying the 460's were better than a 480
but I must say I've never read anywhere they were better than a 5970.
5970 still has a lot of jam.

Let us know if you decide to test it out.

$5 on the 5970
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November 8, 2011 7:15:24 AM

ok I will check it out tommorow~
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a b U Graphics card
November 8, 2011 12:30:11 PM

We are dealing with NORMAL 560s here.
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a b U Graphics card
November 8, 2011 1:02:53 PM

We know. That's why I said keep the 5970
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a c 376 U Graphics card
November 8, 2011 7:17:07 PM

The GTX 560 may be weaker than the HD5870 but the GPUs in the HD5970 are underclocked from HD5870 speeds and Crossfire scaling on the HD5000 series was rather unimpressive compared to SLI scaling on current Nvidia cards(and HD6000 as well actually.)
Here is a review of (non-Ti) GTX 560s in SLI;
http://www.guru3d.com/article/geforce-gtx-560-sli-revie...
They beat the HD5970 in 8 of the 9 tests where they are compared and the one where the HD5970 manages a slight victory is a synthetic rather than an actual game. The numbers are for 1920x1200 but I doubt 2560x1600 would change things much.
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a b U Graphics card
November 8, 2011 11:09:49 PM

What about the 2gb memory?
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a b U Graphics card
November 8, 2011 11:24:19 PM

The SLI'd GTX 560s will spank the HD 5970. If you have no issue with a multi-card configuration there's no question the pair are better (by about 20% to 40% depending on the game).

gnomio said:
We know. That's why I said keep the 5970


I'm confused - is this so the O.P. can have a weaker configuration?
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November 8, 2011 11:59:47 PM

What? I'm confused myself now lol
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November 9, 2011 12:00:12 AM

I am running the 5970 now, not too big of a difference, just my WEI got lower > >
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a b U Graphics card
November 9, 2011 12:16:34 AM

pff WEI
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a c 376 U Graphics card
November 9, 2011 8:50:30 AM

kajabla said:
What about the 2gb memory?

The HD5970 has 1gb of memory per GPU, just like the GTX 560s.

Vokhens said:
I am running the 5970 now, not too big of a difference, just my WEI got lower > >

WEI is useless. Ignore it entirely. Actual performance in games is what you should be looking at.
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a b U Graphics card
November 9, 2011 8:33:50 PM

jyjjy said:
The HD5970 has 1gb of memory per GPU, just like the GTX 560s.

Nah. SLI/Xfire uses only one card's VRAM. An SLI 560 setup has 1gb RAM and the 5970 has 2.
http://www.tomshardware.com/forum/249461-33-share-vram
Yeah, the link's three years old, but things haven't changed since.
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a c 376 U Graphics card
November 9, 2011 9:02:10 PM

kajabla said:
Nah. SLI/Xfire uses only one card's VRAM. An SLI 560 setup has 1gb RAM and the 5970 has 2.
http://www.tomshardware.com/forum/249461-33-share-vram
Yeah, the link's three years old, but things haven't changed since.

An SLI GTX 560 setup has 2gb of ram. 1gb per GPU. Just like the HD5970, as I said. There's nothing in the thread you linked that says otherwise. All it says is the ram isn't shared which is true. It's also true of the dual GPU cards.
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a b U Graphics card
November 9, 2011 9:28:55 PM

This one seems to say it more explicitly.
http://www.evga.com/forums/tm.aspx?m=1295657&mpage=1
The cards' memories are shared; you get an effective 1gb, not 2.
What I'm not certain of is whether the 5970 also mirrors each of its gigabytes. It may end up in the same (lame) boat.
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November 9, 2011 9:44:35 PM

Well considering that they market it as a 2GB card I hope it does > >
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a b U Graphics card
November 9, 2011 10:02:31 PM

Well, it's possible (?) that the 2gb are split between the GPUs as jyjjy suggests. I hope not, but I don't know.
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a c 376 U Graphics card
November 9, 2011 11:33:49 PM

kajabla said:
This one seems to say it more explicitly.
http://www.evga.com/forums/tm.aspx?m=1295657&mpage=1
The cards' memories are shared; you get an effective 1gb, not 2.
What I'm not certain of is whether the 5970 also mirrors each of its gigabytes. It may end up in the same (lame) boat.

I've never said the memory was shared and I'm not sure why you think I did/are pasting links about it. In SLI/Crossfire both GPUs need the same information in memory in order to work properly in conjunction.
Both 2 GTX 560s in SLI and the HD5970 do physically have 2gb of RAM in total. They also both have 2 GPUs. Each GPU in either of these setups uses 1gb of RAM as I originally said. There is no special memory sharing system on dual GPU cards; it is just two GPUs in Crossfire on the same PCB, each with their own exclusive memory subsystem containing the same data. Check out the "4gb" HD6990s and the "3gb" GTX 590s. They are also just two 2gb HD6970s in Crossfire and two 1.5gb GTX 580s in SLI respectively.
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a b U Graphics card
November 10, 2011 12:34:58 AM

Oh. Ok. In that case, the battle remains close, and 560s look better again.
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