Unreal Engine 5.6 fixes critical performance issues
- Thread starter WYP
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NeverBackDown
AMD Enthusiast
About time they get serious performance improvements. Shame the stuttering is only experimental. It's surprising it's taking this long to introduce the fix/optimizations necessary.
WYP
News Guru
Indeed. I think UE5 was simply too ambitious. It wasn't originally created with hardware RT in mind, and Epic must have thought that traditional GPU performance would have increased at a faster rate. Yes, they have their TSR upscaler, but even with that the engine is too hard on the current-gen hardware it was supposedly designed for. I think Epic Games expected better from PS5 and Xbox Series X/S.
Now UE5 has finally got its hardware RT version of Lumen working well and is tackling the issues that will allow larger open world games to be more viable within the engine. One has to wonder how much CD Projekt Red has helped to make this happen. They have been working with UE5 since 2022, and The Witcher 4 is the game that is highlighting some of the newest changes.
NeverBackDown
AMD Enthusiast
I think being ambitious isn't bad. It pushes hardware technology. Sort of like Crysis back in the day. I think hardware has just slowed down because of the state of computation focus, ie AI. Requiring tons of memory and specific instruction sets that take up die space to speed up performance.
I think CDPR has helped tremendously. In the video it seemed like CDPR helped pushed them to create Nanite Foliage technology. It was quite impressive. The entire demonstration was impressive.
I think CDPR has helped tremendously. In the video it seemed like CDPR helped pushed them to create Nanite Foliage technology. It was quite impressive. The entire demonstration was impressive.
WYP
News Guru
Ambition isn't a bad thing, I think Epic Games expected much larger generational gains in GPU performance. As you said, GPU development has gone down a different path than they maybe expected. Lumen wasn't made with hardware RT in mind. Then there is the compute focus that you mentioned. I think the fact that Blackwell's per-SM gaming performance hasn't increased much over Ampere says a lot.
We are only now getting to the stage where Lumen with Hardware ray tracing is ready and fairly performant. Sadly, it will take years for us to see this tech in games.
While I am happy to see Epic Games increase the hardware efficiency of UE5, it is dissapointing that it has taken this long. That said, its better late than never.
Dicehunter
Resident Newb
I wonder if any of these performance improvements could be back ported to older versions of UE5.
WYP
News Guru
I think games would have to be moved forward to Unreal Engine 5.6, which would be a hard task. That said, the benefits could be massive depending on the needs of your project.
NeverBackDown
AMD Enthusiast
No they will require them to update their game. Depending on how old a version they are using it could be easy(relative) to lots of refactoring
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