Nvidia GPU used for physX with Amd GPU?


If you mean at the same time to run a game, no. Nvidia used to allow a feature called "Hybrid PhysX" but this has been shutdown for a while now. Besides, this is a pain to deal with on the driver side of things and honestly isn't worth the hassle just for fancier physics and effects. Hope this helps! :)
Even if nvidia allow for hybrid physx to work AMD have no intention to support such system since the very beginning anyway. Meaning if there is driver conflict nvidia will be the only one have work it out. To avoid more complicated issue from happening in the future nvidia actively blocking GPU physx function when the main renderer is not nvidia GPU. That way user can't bring this issue to the court since such setup is not officialy supported by nvidia.

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