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This video compares the graphics of Heavy Rain on PC and PS4. The PC version is set to maximum graphics with 4K | 2160p native resolution at 60fps. Heavy Rain isn't enhanced for PS4 Pro users, therefor it is at native 1080p. PS4 was recorded using Elgato 4K60 Pro.
Quantic Dream , For the first Heavy Rain has been released on PC on the Epic Games store worldwide on 24 June 2019.
Try the demo now at - https://www.epicgames.com/store/en-US/product/heavy-rain/home