The following is simply information gathered about the Playstation 4 from various websites; mostly wiki:
The PS4 will contain 8 GB of GDDR5 unified system memory with a maximum bandwidth of 176 GB/s. This is 16 times the amount found in the PS3, and is expected to give the console considerable longevity. The unified memory architecture allows the CPU and GPU to access a consolidated memory, removing the need for separate, dedicated memory pools. The non-unified memory architecture of the PS3 was reportedly problematic.
The read-only optical drive will read Blu-ray discs at 6x CAV for a maximum read speed of 27 MB/s – a significant upgrade from the PS3's 2x speeds that were capped at 9MB/s. Early reports indicate that the Blu-ray Disc drive will not be capable of reading quad-layer 100 GB discs, a new Blu-ray Disc technology designed to support 4K resolution. Although the console will support photos and videos at 4K resolution, the system is not expected to be able to render games beyond 1080p.A storage drive will also be included, though Sony has not announced the size or type.
The PlayStation 4 will feature 802.11 b/g/n wireless network connectivity, Ethernet, Bluetooth 2.1, and an unspecified number of USB 3.0 ports. An auxiliary port will also be included for connection to the PlayStation 4 Eye, a motion detection digital camera device first introduced on the PS3. A mono headset, which can be plugged into the DualShock 4, will come bundled with the system.Output options include HDMI, analog audio/video, and optical S/PDIF.
The controller will feature several output connectors. Its stereo jack (3.5 mm TRS connector) will support the connection of a headset to allow a user to speak and hear audio simultaneously. A micro USB port, an extension port, and a mono speaker will also be included. The controller can be charged via microUSB, a dedicated charging station, or the console (even when the console is off).
The DualShock 4 will feature the following buttons: PS button, SHARE button, OPTIONS button, directional buttons, action buttons (triangle, circle, cross, square), shoulder buttons (R1/L1), triggers (R2/L2), analog stick click buttons (L3/R3) and a touch pad click button. These mark several changes from the DualShock 3 and other previous PlayStation controllers. The START and SELECT buttons have been merged into a single OPTIONS button. A dedicated SHARE button will allow players to upload video from their gameplay experiences.The joysticks and triggers have been redesigned based on developer input.The joysticks now will feature a concave surface, similar to that of the Xbox 360 controller.
The DualShock 4 will also feature a light bar that can display different colors. The colors will help identify players and alert them with critical messages such as low health. It also will interact with a camera attachment that perceives movement and depth by using the controller's light bar. It is based on the existing technology used in the PlayStation Move. Existing PlayStation Move controllers will be supported on the PS4.
This is a picture of the 'DualShock 4':
Of course, this thread's main purpose is to speculate all about this upcoming Playstation 4. Do you plan on getting the Playstation 4? Is there specific features that you like/dislike about the Playstation 4?
Feel free to give any opinion/thought about the PS4 here. ^^