Does PS4 stretch 1080p over 1440p or does it only display 1080p with black bars?

Turboman750

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Feb 2, 2013
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I have a high res monitor and I'm thinking about hooking my PS4 up to it.

I don't want it to stretch the 1080p pixels over the 1440p because it will make it blurry. I'd prefer a smaller screen displaying only 1080p pixels.

Does anybody know if the PS4 does this?