Adding a video card for SLI

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Zeifer21x

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#1 Zeifer21x
Member since 2010 • 169 Posts

Hey guys,

QUick question. I already have a 560ti 448 classified card installed on my system. I now want to add another. Is it as simple as dropping in the new card and linking them with the provided "link" or do I have to do something additional?

Any help would be appreciated. Thanks!

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MonsieurX

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#2 MonsieurX
Member since 2008 • 39858 Posts
That's it. And enabling SLI in the nvidia panel
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Idontremember

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#3 Idontremember
Member since 2003 • 965 Posts

Well, going into the nvidia panel, there should be a tab for SLI ans Physx, selecting Enable, or something like that...
I don't remember if sli is activated automatically, but there's the option to enable/disable it in the nvidia panel.

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blaznwiipspman1

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#4 blaznwiipspman1
Member since 2007 • 16905 Posts

you spent $600 on two video cards...when you couldve just picked up a single 7970. 1 X 7970 ~= 2 X 560 ti.

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Zeifer21x

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#5 Zeifer21x
Member since 2010 • 169 Posts

you spent $600 on two video cards...when you couldve just picked up a single 7970. 1 X 7970 ~= 2 X 560 ti.

blaznwiipspman1
I haven't spent more than $289 yet. Besides, the card came with Arkham City, which was a great deal for me. Additionally, getting a 7970 would be overkill for what I do right now. Which is why I bought a 560ti classy in the first place. Was just wondering for future purposes. Hoping for a price drop when Kepler comes out.
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LordsLoss

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#6 LordsLoss
Member since 2006 • 2584 Posts

you spent $600 on two video cards...when you couldve just picked up a single 7970. 1 X 7970 ~= 2 X 560 ti.

blaznwiipspman1
Maybe he has had the 560 for like a year? You don't know that.
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neatfeatguy

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#7 neatfeatguy
Member since 2005 • 4415 Posts

you spent $600 on two video cards...when you couldve just picked up a single 7970. 1 X 7970 ~= 2 X 560 ti.

blaznwiipspman1

TC is running a 448 core GTX 560 Ti - roughly 5% slower then a GTX 570.

Dual GTX 570s, from comparing benchmarks, out performe a single HD 7970 without a problem. Usually by a good 25% or more (seen upwards of 50% on a couple of games at the high end resolutions), depending on resolution, game and settings.

I don't see how dual GTX 560 Ti 448 would perform worse than or equal a HD 7970.

The benchmarks I looked at did not have identical setups, so it would be fair to say a +/- 5% margin of error could be found when trying to compare SLI GTX 570 and a HD 7970. In the end though, 570s are on top. The 560 Ti 448s would be right behind the 570.

Now, it comes down to this. You run two cards that'll probably give a good 20%+ gain over a single 7970 in almost any given situation, but you end up generating more heat and using more energy to run your system. So, you spend another $290 for a second card or you sell off what you have and then you need to front the difference for the 7970 - which is roughly around $560.