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Cerny confirms PSSR2 and FSR4.1 use same neural network
- Thread starter YCoCg
- Start date
kazuyamishima
Member
MisterXDTV
Member
He said so like a year ago, it's not exactly news...
Mark Cerny: FSR 4 for PS5 Pro is the "next evolution of PSSR"
The RDNA 4 upscaler is the first result of AMD/Sony's Project Amethyst collaboration
www.digitalfoundry.net
But people here said PS5 Pro couldn't run the same tech of FSR4....
LOL
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crazyriddler
Member
Old news? We already knew that both upscalers use the same neural networks, PSSR2 and FSR4.1 were developed in collaboration between AMD and Sony. That doesn't mean PSSR2 = FSR4.1. They said at the time that PSSR2 was going to be a lighter version of FSR4 optimized for the PS5 Pro's AI cores.
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SplunkyMunkey
Member
Sooo what about fsr 5? Aka fsr diamond thats going to be on helix? Is that the same as fsr 4.1 or pssr 2 gonna lag behind or use upgraded fsr 5 and call it pssr 3?
Bojji
Gold Member
He said so like a year ago, it's not exactly news...
Mark Cerny: FSR 4 for PS5 Pro is the "next evolution of PSSR"
The RDNA 4 upscaler is the first result of AMD/Sony's Project Amethyst collaboration
But people here said PS5 Pro couldn't run the same tech of FSR4....
LOL
It's FSR4.1 int8 basically. And that was denied by many people here...
Pro always had power to run it, but it was used for inefficient PSSR1.
Amethyst created core Super Resolution tech. FSR4.1 is FP8 version of it and PSSR2 is int8 version of it.
They will jump to FP8 version of tech for sure for PS6. General super resolution tech will reach 2.0 version by then and MS, Sony and AMD will use their variants (with different names).
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Bojji
Gold Member
Yeah, ML frame gen and ray regeneration will be standard stuff next gen.
winjer
Gold Member
And this means that AMD has an Int8 version of FSR4.1 ready to go, but refuses to release it for RDNA3. Which has the hardware to accelerate ML in Int8, through its WMMA units. Twats.
Bojji
Gold Member
Yeah. I wonder if they will change their mind at some point...
winjer
Gold Member
Maybe when their market share is at 1%.
FSR 5/Diamond are transformer models for upscaling/framegen/denoising built for RDNA5. Will be pretty much 100% identical between PS6/Xbox Helix/RDNA5 dGPUs regardless of whatever branding each one uses.
Closer
Member
Maybe Sony made a deal to have the only INT8 version avaliable, who knows.
winjer
Gold Member
I really doubt that. This is just the Radeon Group being idiots, as par for the course.
Bojji
Gold Member
At least that leaked version of FSR4 exists...
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MisterXDTV
Member
PS5 Pro has 2.5x the INT8 TOPS of the the 7900XTX that was the flagship RDNA3 card
How can people expect the same results of a PS5 Pro still baffles me....
If you drop down to the 7800XT then the difference becomes 4x
They don't release it for the same reason PSSR is not available on the base PS5.
It wouldn't work properly
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winjer
Gold Member
The upscaling never uses all that compute at the same time.
The simple proof is that RDNA3 can run FSR4.0.2 Int8 version well enough, even using the DP4A path and the overhead of Optiscaler.
If AMD released it officially, using the WMMA path it would be significantly faster.
