Just hooked up mine to my system. 2.6Quad, 1TB HD. Out of the box it is really fast. I was planning to upgrade the memory and SSD but I don't feel the need yet. I have it set to 1080p60 and looks great on my display.I had to play with the MIDI/AUDIO Utility to get it to output Dolby Digital. Remember though Netflix and Hulu don't stream Dolby Digital to PCs yet, but Apple Store purchases are full HD and Dolby Digital. I tested graphics card out with Uberstrike HD and it is very smooth. I am not a heavy gamer anymore, but I will be getting CIV 5. I still have to get it to work with my Harmony Remote and still have more PLEX experimenting to do. There has been a lot of negativity about the Intel Graphics 4000. It is good enough. There is a lot of crap talk about putting an SSD in, instead of getting one factory from Apple. Smurf that! I love modding my stuff. I guess its all sour grapes for some people. So far very happy with purchase and it has been worth every penny. Highly recommended.