Using a GTX 680 as a dedicated physx card

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If you already have a 680 laying around, then put it in as a PhysX card. For a 780, that's probably one of the best cards to use, but I have seen tests with a GT650 doing very well in a system with a 680 as primary. So, I would say a 660 would be the minimum.

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Lord_Kitty

Lord_Kitty

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May 31, 2013
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Yes you can. But the GTX 680 is a high end card. You must have a good power supply and fairly good cooling to run those two.

You might as well sell the GTX 680 and buy something like a used GTX 660 to do the PhysX processing.

Also, you must consider if you will really benefit from the added card. If you will be playing lots of games with PhysX, then you're good, else you will have a card that will be only heating up your case.

The GTX 780 is a really good GPU. You should try enabling PhysX on it. I doubt the frame rate drop will be big.
 
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NevJF

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Aug 22, 2008
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I tried playing Batman Arkham City on my GTX 780 and it got a crappy frame rate.

So I checked to see if the GTX 680 could be used as a dedicated Physx card.
 
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Lord_Kitty

Lord_Kitty

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May 31, 2013
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A mid range card is enough to max out Arkham City. Its likely some other things that is causing a low frame rate. Make sure you have they latest drivers of everything in your computer.
 
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17seconds

17seconds

Champion
Jul 27, 2010
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If you already have a 680 laying around, then put it in as a PhysX card. For a 780, that's probably one of the best cards to use, but I have seen tests with a GT650 doing very well in a system with a 680 as primary. So, I would say a 660 would be the minimum.

 
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Masterhashbrown

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Aug 12, 2014
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I just sold one of my GTX 770s and currently waiting for EVGA's classified GTX 980. Would my leftover GTX 770 be perfect as a dedicated physX card?

 
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17seconds

17seconds

Champion
Jul 27, 2010
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Give it a try. That's the best way to find out. I think you'll find that the heat, noise, and extra power consumption may make it not worth the performance gain.
 
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