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Old 03-24-09, 09:18 PM   #3
ChrisRay
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Join Date: Mar 2003
Location: Tulsa
Posts: 5,101
Default Re: with two GTX 280 and a phyics card

The way Nvidia drivers work with SLI and identical cards and PhysX is.

1) SLI Enabled + PhysX enabled

First GPU does PhysX Workload + Rendering workload. Second GPU does all Rendering workload.

2) SLI Disabled

First GPU does rendering workload, Second GPU does physics workload.


If you were to add a 9800GTX to the mix.

You'd now have the option to set its own seperate PhysX device. Keep in mind this cannot be done with 3 identical cards due to the limitation of the driver currently. You will need an card with a different deviceID/type.

3) SLI cards do full rendering workload and 9800GTX does PhysX.
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