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Old October 9, 2011, 10:10 PM
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Default 16x, 4x GTX 560 ti SLI

Hey guys I have a gtx 560 ti and a mobo that only supports SLI in 16x, 4x mode. I know tons of people say 16x, 4x is worthless but I have also read that it is only a 5% hit. So really does anyone have real word comparisons I can take a look at between the single card, 8x,8x mode and 16x, 4x mode.

I googles this but didn't come up with any comparisons that included the single card, or they didn't include system specs. (what good is a GPU SLI/Crossfire review if you don't put down the card name?)
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Old October 10, 2011, 05:57 AM
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Have no info on this from experience, but found these links for you.

Link 1

Link 2

From link 2 picture

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Old October 10, 2011, 11:48 AM
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You'll see basically no performance decrease, so you should be fine.
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Old October 11, 2011, 11:56 AM
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IIRC it was a 5% overall hit when I tried it eons ago, but some things were really flakey in that configuration, like the CPU tests in the 3DMark benchmarks. Granted this was with hacked drivers on a P5B Deluxe. (6800GS's) I had some posts about it over on Xtremesystems who seem to be down for some reason...
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Old November 1, 2011, 07:34 PM
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hey, im not sure if the gtx 560 ti's can dual quad sli they can only do two way sli.
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Old November 1, 2011, 07:36 PM
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He wants to run dual not quad sli.. in 16x 4x mode.
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Old November 1, 2011, 10:46 PM
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I'm surprised it's a SLI capable board. Nvidia typically doesn't certify 16 / 4x boards for SLI. I know almost all of them do Crossfire, but I'm not sure how it will handle SLI. I'd be less worried about the bandwidth limitations than chipset limitations. I thought the sandybridge chipset only supported 16 lanes of graphics... Or I guess you'd be running 4x 4x so it'd only be using 8 lanes.

I dunno I just have a feeling running a card in a 4x slot is not the same thing as putting a card in a 16x slot and setting it up in bios to only run at 4x.
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Old November 1, 2011, 11:18 PM
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As someone who has run cards in 1x(physical) slots.. 4x will be just fine and you will not notice much if at all it unless you use synthetic benchmarks.
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Old November 2, 2011, 04:33 AM
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I can agree with MacJunky there, I've run cards before in xfire or sli at x16 and x4 and there was no real noticeable difference while gaming, only short coming is what he mentioned in epeen benchmarks.
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