I created a discussion about two years ago about graphics issues I was having with my Alienware 17 R1 laptop. Final verdict was that my Radeon R9 M290X card had to be replaced. I was given some recommendations - GeForce GTX 770M, 780M, 860M or 880M. I didn't buy a new card at the time.

I'd like to buy one now but I'm not sure where to be looking. I would hate to buy a new card only to find out it doesn't work. Amazon doesn't have much. Ebay seems to be all used cards. Anyone have any recommendations on sites to buy from? Recommendations on different cards? Any help is greatly appreciated!