Watch the video in the thread people are showing. It's the main ue5 architect saying it runs fine on PC and it was running fine and did all what we saw on the ps5 demo. Those things just already happened when they started with the video. So either the main architect is a liar and everything epic said about ue5 can't be believed or they were telling the truth and it runs fine on PC.
Let's stop it here please and just educate yourself. It was not running as we saw on the PS5 demo. Some of you are fucking blind or something? yes it runs "just fine" in editor mode is COMPLETELY different then equal gameplay. Sure editor mode can be taxin if you drop a lot of object or geometry in the scene, that's the purpose of a editor. It's not the purpose of a editor to run as a slideshow, otherwise how would you even want to create something?
PC editor mode demo breakdown: No physics enabled, no vfx enabled in some of the scenes, no animation, character control or physics:
This comparison is not to compare graphics, it's to compare the difference between editor mode and equal compiled playable demo that is optimized for a different platform. They didn't showed the game at the end on the PC like we've seen on the PS5, so it's really hard to tell how it will perform on the pc, especially in the last section of the demo. The most complex part was the end of the scene for the storage and streaming tech.
That's why UE5 is scalable, and doesn't mean one demo can run on something else without any work on it.