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These Two GTX 560's Work in SLI?

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a b U Graphics card
January 26, 2013 6:58:03 PM

depends on the motherboard. It should work fine, but only if they are both running at PCIe 3.0 x8, or PCIe 2.0 x16. You might experience some bottlenecking if it is running at pcie 2.0 x8.
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a b U Graphics card
January 26, 2013 7:03:14 PM

They should work fine together. There will not be a bottleneck in 2.0x8 slots. I used to run a 460 for physx and a 560ti the same rig. It's a long story why I had a set up like that. But I didn't have any bottlenecks. Also, my brother ran a 560ti in a 2.0x1 slot with out a bottleneck. just make sure that you have the two cards at the same clock.
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January 26, 2013 7:28:20 PM

Thanks both of you for the quick replies...

@ JJ1217:
This is the motherboard they will go in: http://www.asus.com/Motherboard/M4A89GTD_PROUSB3/#overv...

@ lt_dan_zsu:
Same clock? Well, that's just the point. The one I have now has a 870mhz core, the one I wanted to pick up has a 810mhz core. Slightly different memory clock rates too. (see above links) I thought I read where the faster card will drop its clocks to the speed of the slower card. No?
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a b U Graphics card
January 26, 2013 8:05:09 PM

It was a high mid range card when it came out. I don't think 3.0 was even out yet. 2.0 will be fine. Those bottlenecks aren't as substantial as people think. A 680 only got 10% worse performance on BF3 with 1.1x4 as opposed to 3.0x16. And yes I think it should match the lower clocked one. I see no reason why sli wouldn't work.
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January 26, 2013 8:25:06 PM

lt_dan_zsu said:
It was a high mid range card when it came out. I don't think 3.0 was even out yet. 2.0 will be fine. Those bottlenecks aren't as substantial as people think. A 680 only got 10% worse performance on BF3 with 1.1x4 as opposed to 3.0x16. And yes I think it should match the lower clocked one. I see no reason why sli wouldn't work.

Great! Do you think I'd be able to O/C the weaker card with EVG Precision (or something else) to match the faster card? I presume they would work at the same speed then.
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a b U Graphics card
January 27, 2013 2:55:47 AM

I'd guess you would be able to overclock it if you wanted(I probably would). Since there appears to be 3 spaces, you might be able to get some overclocks.
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January 27, 2013 3:17:02 PM

I'm afraid I wasted everyone's time. I just found out that the board I have only does Crossfire, no SLI. Thanks for your insight though. I learned something, and that's always helpful.
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a c 82 U Graphics card
January 27, 2013 3:30:47 PM

yes sadly it does have 2 pci-e ports rated for crossfire only.

;P

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February 3, 2013 1:07:28 PM

Best answer selected by box o rocks.
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