Playstation 4 Pro
PlayStation 4 Pro (codenamed Neo) was announced on September 7, 2016 and launched worldwide on November 10, 2016. Its model number is CUH-7000. It is an upgraded version of the PlayStation 4 with improved hardware to enable 4K rendering and improved PlayStation VR performance, including an upgraded GPU with 4.2 teraflops of processing power and hardware support for checkerboard rendering, and a higher CPU clock. Games marketed as PS4 Pro Enhanced may be optimized for higher graphics quality, resolution, or HDR support when running on PS4 Pro. Although capable of streaming 4K video, the PS4 Pro does not support Ultra HD Blu-ray. Rendering games at 4K resolution is achieved through various rendering techniques and hardware features; PlayStation technical chief Mark Cerny explained that Sony could not "brute force" 4K without compromising form factor and cost, so the console was designed to support "streamlined rendering techniques" using custom hardware, "best-in-breed temporal and spatial anti-aliasing algorithms", and "many new features from the AMD Polaris architecture as well as several even beyond it". The most prominent technique used is checkerboard rendering, wherein the console only renders portions of a scene using a checkerboard pattern, and then uses algorithms to fill in the non-rendered segments. The checkerboarded screen can then be smoothed using an anti-aliasing filter. Hermen Hulst of Guerrilla Games explained that PS4 Pro could render something "perceptively so close [to 4K] that you wouldn't be able to see the difference." PS4 Pro supports Remote Play, Share Play, and streaming at up to 1080p resolution at 60 frames per second. 2160p screenshots, and 1080p video at 30 frames per second, can also be captured via the share button.