Kotaku has written great article regarding what they have uncovered of the PS4’s guts. You can find the link at the bottom, but the basics are 8GB RAM, 2.2GB Video RAM, 4x Dual Core AMD’s (Bulldozers), an AMD R10xx GPU, USB 3.0, Dual Ethernet, Blu-Ray, 160GB HDD, and HDMI & Optical out. All that plus a possible additional controller mimicking the VITA. You can read the full article HERE.