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AMD & nVidia GPGPU

post #1 of 9
Thread Starter 
I have a spare 9800GTX+ in my drawer gathering dust and usually nVidia cards are used as Physx cards when in a system with an AMD card but I'd like to know if there's a way to use the nVidia card as a GPGPU card. I run BOINC on my 6870 (mining can go to hell) and would like to use this old 9800GTX+ for the fun of it. I don't game much so my goal is not to use it as Physx card at all. Does anyone know whether it's possible and how it's done?

Thanks in advance.
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post #2 of 9
You mean you want to run two video cards, one Nvidia and one AMD, at the same time?

Like this?




Works for me............

I have used each card to drive separate monitors. Currently the little ATI card is connected to a Samsung HDTV (via HDMI) and the Nvidia card runs two Samsung monitors. Both setups work fine.
Edited by billbartuska - 3/6/14 at 8:40am
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post #3 of 9
Thread Starter 
Not just this but also use both their capabilities at the same time.

As I said I run BOINC and while the 6870 achieves three times the GFlops the 9800GTX+ achieves I thought it would be fun to test the older card out just for the sake of it. I don't play games that much so I don't care about its Physx capabilities also I won't be using it to attach another monitor to.

Can you please tell me how you got both of them working so I can test this myself?
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post #4 of 9
Quote:
Originally Posted by Liranan View Post

Not just this but also use both their capabilities at the same time.

...also I won't be using it to attach another monitor to.

That won't be happening.
You either have to run Nvidia's SLI with two Nvidia cards, or ATI's Crossfire with two ATI Radeon cards to make two cards use a single monitor. Your motherboard also has to support SLI or Crossfire, though there are some Nvidia cards that will run SLI W/O motherboard support.

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post #5 of 9
Thread Starter 
You misunderstand what I mean. The monitor will remain attached to the 6870 but I'd like to test CUDA out on the 9800GTX+ and other GPGPU programs.
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post #6 of 9
I've never tried that. I don't use Physx or CUDA.
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post #7 of 9
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post #8 of 9

 

I could've sworn that Nvidia disabled the ability to use their cards as PhysX cards with AMD card systems in the most recent WHQL.

post #9 of 9
Thread Starter 
Latest drivers it seems, the last ones to work are 314.22 but I gave up on this project, the GFlop output of the 9800GTX+ is so low it's not worth the hassle.

According to Wikipedia the 9800GTX+ achieves over 700GFlops but according to an article on these forums it's about 84, which is terrible. My CPU manages 50 and my GPU 2TFlops, so other than heat it will produce nothing.
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