• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

780ti & 5820k physx question

Unless you are having issues leave it on auto-select which will usually select the GPU or select the GPU. In the few games that support more complex PhysX effects the GPU will handle them considerably faster and/or they are only enabled with GPU selected.
 
Actually it can be beneficial to force physx to run on the cpu in some rare situations. Ive had such a situation on my old kepler 780 lightning in witcher 3 where forcing physx to cpu would remove a lot of the framedrops from the game. Now of course this is a long time ago i tested this way back when witcher 3 was brand new and only a patch or 2 in, it could be different now. But as said above just leave it on auto unless you have clear performance issues. Dont poke the bear if it ain't bothering you...don't.
 
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