Eurogamer’s Digital Foundry have painted the doors with lamb’s blood, lit the black candles, and put on their safety goggles before forcing the unholy union of a PS4 and an Xbox One.
The Xbox One features HDMI-passthrough, mainly intended to be used with television broadcast devices (cable TV, Satellite TV, etc). This means you can connect the PS4 HDMI output to the Xbox One HDMI input, which is then passed through to the television, while the Xbox One UI remains usable overlaid on the image.
According to the results of this little experiment, the Xbox One handled pretty much every input type it was challenged with, but Digital Foundry cannot recommend using this method to play games. The reason being that the Xbox One needs to do additional signal processing on its side to sync up the video and audio output to the television. This introduces lag into the response which is not ideal for a gaming setup, the scientists said.
So, it’s possible to run your PS4 games through the Xbox One’s HDMI-passthrough, but it’s just not a great idea.
Source: Eurogamer
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