Asslam o alikum... I am having a core i7 rig with 5850 card... Just wanted to know... That wht is phy x?? When we place nvidia card seperatly how does it work ??? Do we have to install driver.. I mean to say how it works... I knw nothing about working thts why am asking...What is the advantage of having a extra card for phyx?? Does it increase the performance in games??? Plz explain me in details as if i get satisfied then i will go for it... An kindly suggest me a card which support phyx tech.. I want to buy after knwing how it works my budget is 8k..