From what ive heard about AMD's polaris architecture is their entry level cards will be as powerful as the GTX 960 and cost under $200, the GTX 960 is not powerful enough to run games at 4k with playable frame rates so why is it people are hyping up a rumor about a new PS4 claiming it is for 4k when to get a PC to do 4k with playable frame rates you need at least an R9 Fury X/Nano or a GTX 980ti which cost upwards of $700, for Sony to have a console capable of 4k gaming they would make a huge loss on every console sold plus looking at the PC market how many people actually game at 4k, id rather have a game look as good as it can and run at a solid 60 fps than a game trying to push 4k.
personally i believe Sony are planning to incorporate the chip inside the PSVR into the console itself so they can produce the VR headset at a lower price point, remember the PSVR is not rendering one 1080p image but two 1080p images at the same time.
Current PC build:
Asus Z97I-Plus, i5 4790K @ 4.6ghz, EVGA GTX 980 ACX 2.0 1377/1853/124%, Corsair Vengence Pro 2400mhz 2x 8192mb, Corsair RM850, Corsair H80i, 120GB OCZ Vertex 3 SSD, 750GB Seagate Momentus XT SSHD, 320GB Weston Digital HDD, Corsair 230T, Corsair K50 Raptor, HP XQ500AA mouse, Windows 10 Pro 64bit. iiyama Pro Lite G2773HS 120Hz 1Ms G2G gaming monitor.