VR Headsets: Oculus Rift, HTC Vive, Playstation VR, OSVR

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Sony has moved to a full 120Hz OLED panel, and we can assume that the PS4 is outputting 1080p120 on 'native' refresh software. So the question is really, what is the external processing box actually doing?

One of its known functions is to create the social screen via its HDMI output. This allows gameplay to display on an HDTV for others to watch and participate in while the main player is immersed in the VR environment. The initial breakout box we saw took the warped output produced by VR, zeroed in on one eye view and then stretched the image back into shape.

Sony has also implemented asynchronous time-warp, allowing 60fps games to be frame-rate upscaled to the native refresh of the HMD panel. The process also subtly warps the image based on the very latest motion data from the headset. Async time-warp can actually applied to all frames (even on native 120Hz code) and helps reduce potential nausea issues by ensuring that visual response to HMD movement is as fast as it can be.

We can confirm that the current hardware is actively cooled, meaning that the chip inside is powerful enough to require assistance with heat dissipation. However, despite the active cooling, we shouldn't expect too much from the external processor - core graphics rendering for VR all takes place within the PlayStation 4 hardware itself and it's going to be down to developers to work within existing limitations to get the best results.