I just got Tomb Raider for my 5k imac and it is in the process of downloading. I am just wondering from a performance perspective, the does the imac 5k compete with the ps4? Specifically for this game and in general as well. I am quite aware that the ps4 Tomb Raider they gave a game a cosmetic "facelift" if must it call it for the ps4 version. I had the ps3 version and I am just wondering if I am going to see a decent jump in graphics. The reason I am asking is that when I purchased my imac 5k last week, the salesman was talking about the how great the amd graphics card was. He told me that this new amd is "game changing" and that was one of the reasons Apple switched to amd this year instead of nvida. If this is true, I might hold off for a ps4 for longer than I intended. (Until later this year when Uncharted 4 and the new Need for Speed are released of course) Gta V is coming next month as well I am just wondering if the 5k will look just as good and if not better than the ps4. Thanks in advance.