do two unpaired cards increase performance

johntmssf

New member
i'm getting a Nvidia gtx 570 and 260, the 570 as the main card and the 260 as a dedicated physx card, and i was wondering, when not playing games or programs that involve physx will the card have any increase in performance, these cards are not, and will not be in SLI (because of my AMD motherboard.)
 
i'm getting a Nvidia gtx 570 and 260, the 570 as the main card and the 260 as a dedicated physx card, and i was wondering, when not playing games or programs that involve physx will the card have any increase in performance, these cards are not, and will not be in SLI (because of my AMD motherboard.)

Hello

Sometimes yes. If you use the 'auto select (recommended)' option for the PhysX processor in the Nvidia Control Pannel, the system can use the 260's memory when there's no PhysX to be processed, and when you use PhysX the system will make the 260 do it. Use MSI Afterburner to monitor the card's memory usage.

note: MSI Afterburner will modify graphic's cards cooler fan speeds automatically, be careful with customising MSI Afterburner settings
 
no it will only work as a physx card if the game dosnt use physx the card will just idle and provide no performance increase.
 
no it will only work as a physx card if the game dosnt use physx the card will just idle and provide no performance increase.

the attached result is running heaven 2.0.

GPU 3 is the 9800. at the bottom we can see the memory is being used.

GPU 1: GTX 480 is the primary and SLI is disabeled.

GPU 2: GTX 480's memory is also being used

The total graphic card memory usage is equaly shared between the three cards
 

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