Update: In a recent clarification on the original PlayStation blog postSony noted that the number of PS4 games that should be supported with backward compatibility is much higher than the first comments from PS5 chief architect Mark Cerny showed.
“We think the overwhelming majority of the 4,000+ PS4 titles will be playable on PS5,” said the message. “We expect backward compatible titles to run at a boosted frequency on PS5 so that they can benefit from higher or more stable frame rates and potentially higher resolutions. We are currently evaluating games title by title to identify any issues that need to be addressed by the original software developers. ”
Sony also notes that new backward compatibility updates will be available in the coming months, as well as more details on the PS5.
Original story (posted on 3/18/20, 12:05 p.m.): During today’s presentation “Road to PS5”, Mark Cerny, the main architect of the PS5 system, went through many technical details regarding the future hardware of Sony. Although the event seemed more focused on developers than consumers, it clarified some information on one of the topics that players are passionate about: backward compatibility.
Cerny revealed that the backward compatibility of the PS4 (and PS4 Pro) is a native part of the PS5 chipset, and that it is not a scenario like the backward compatibility of the PlayStation 3, which basically included a copy of the PS2 in each console until the functionality has been removed in subsequent iterations.
“Once backward compatibility is in the console, it is,” says Cerny. “It’s not like cutting costs removes backward compatibility like it did on PlayStation 3.”
However, that doesn’t mean that every PS4 game will automatically run perfectly out of the door. Cerny says that running PS4 titles at boosted frequencies can lead to complications in some games. “The boost is really huge this time, and some game codes just can’t handle it,” he says. “The tests must be carried out title by title.”
So what PS4 games can you play on your PS5? Cerny says that “almost all” of the top 100 PS4 games (ranked by playing time) will be available at launch. Presumably, testing on individual games will continue beyond that to continue expanding the library.
In contrast, the Xbox Series X has an even more inclusive approach. Last month, Xbox chief Phil Spencer explained that all existing Xbox One games – including Xbox 360 games that are already backward compatible on Xbox One – will work on the Xbox Series X.
All of these recent PS5 backward compatibility details relate specifically to the PS4 Pro and PS4 titles; Cerny didn’t mention whether PlayStation games from previous generations would also work on PlayStation 5.