Backwards Compatibility - PlayStation 5 Guide - IGN

In a reveal with Wired [1], PS5 Lead Architect Mark Cerny confirmed that the PlayStation 5 would have Backwards Compatibility with all PlayStation 4

PlayStation 5 Isn't Backward Compatible With PS1, PS2, or PS3 Games

PS5 Won't Be Backwards Compatible With PS3, PS2, or PS1 Games

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Xbox Series X Guide - IGN

IGN - SIE President Jim Ryan says 99 percent of the thousands of PS4 games Sony has tested will be playable on PS5 via backward compatibility.

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Sony Patent Suggests PS1, PS2, and PS3 Could Be Backwards Compatible Via the Cloud - IGN

PS5 Won't Be Backwards Compatible With PS3, PS2, or PS1 Games - IGN

Is The PS5 Backwards Compatible?

PS5 Backward Compatibility Finally Explained + Avengers Disassemble - IGN News Live