In an exclusive meeting with Wired, Lead System Architect Mark Cerny (Twitter) revealed Sony's next-gen PS5 videogame console will feature GPU ray tracing, a specialized solid-state drive (SSD), 8K output, PS VR and PS4 backwards compatibility support as PlayStation 5 will include a disc-based system to ensure a gentle transition with multi-platform game releases... however, he also confirmed it definitely won't be released in 2019 stating it isn't an upgraded PlayStation 4 but instead will be a true next-generation machine!
To quote from IGN's summary of what's known on Sony's upcoming technology thus far:
Cerny explained that the console's CPU is a variant of the AMD Ryzen third generation, and that its GPU is a custom version of Radeon's Navi line. That GPU is capable of ray tracing, a high-performance graphical technique with some incredible results. As you'd expect, the console will also support 8K displays.
Cerny also showed off the power of the console's new solid state drive (SSD) with a practical demo. According to Wired, fast-traveling between locations in Insomniac's Spider-Man on a PS4 Pro took 15 seconds. Using a next-gen PlayStation devkit, the same action took 0.8 seconds.
Some PS4 Firmware 6.00 Beta 3 Screenshots of a cleaner UI have also surfaced, and this comes proceeding the release of the current PS4 Firmware 5.55, and according to reports the Japanese signup page states testers are being accepted through July 27th providing applicants are over 18 years old and a PlayStation Plus or PlayStation Now subscriber.