I have just upgraded my old GTX 960 to a GTX 1070. I was planning on using the 960 as a dedicated physx card. However it does not fit anymore along side the 1070. I do have an old GTX 460 tho that fit in no problem. My question is is it even worth it to use the 460 as a dedicated physx card with the 1070? A friend of mine said it would actually make things worse, but anther said every little but helps.