Lets start gathering the important points :
Everything about this hardware spec suggests it is indeed running on 14nm processor fabrication technology,
First up, we should tackle the issue of how reliable the leak is and by extension, whether the proposed spec is real or not. Up until very recently, exposure to 'PlayStation 4K' throughout the development community was limited. We have been sitting on a number of details awaiting a second source before going to press, but events have overtaken us somewhat - Sony is now openly sharing this specification with developers and while Giant Bomb beat us to the punch, we have access to the same documentation. There is no doubt - this is real. This is the new, more powerful PlayStation 4.
The release window is unclear, but the schedule for hardware roll-out to developers is black and white: development kits prototype are on their way to studios now. A test kit (debug station, if you like) housed within a non-final chassis - which Sony is asking developers not to show - follows shortly. A second-gen test kit, again not based on the actual retail shell, goes out in June. Sony gives more intensive Neo briefings at its DevCon event in in May, while code submission for Neo-compatible titles begins in August.
Sony seems committed to keeping the NEO and the original PS4 player bases connected. As such, there will be no NEO-only games, and Sony will not let developers separate NEO users from original PS4 players while playing on PSN. Likewise, Sony explicitly and repeatedly states that developers cannot offer exclusive gameplay options or special unlockables for NEO players
Base PS4 PS4K Neo Boost