I did already and there seems to be some kind of misunderstanding. I never said you said that they fit into L1. Vkbest was saying that they can use cache blocking/tiling to use L1 efficiently that he would not be surprised if they are. i.e they don't need to "fit a 20 million parameter model onto a 128kb cache.".
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PS5 Pro is getting PSSR 2.0 between January and March 2026
- Thread starter IbizaPocholo
- Start date
- Rumor Hardware
winjer
Gold Member
Consider that the L1 cache in an SM is not used only for ML operations. There are other units i the SM that also use that. And 128kb is a small amount per SM. Then again, it's normal for L1s to be small.
So the L1 cache will only have operations that are nearing their time for execution. Most operations will eventually pass through it. But using it as a storage space is wasteful.
And the L2 is a victim cache.
I'm still waiting to understand what you mean by tiling in this context.
Read up on "cache blocking". I'm not sure what you mean by use as a storage space but the point was that DLSS/PSSR likely uses "cache blocking"/"tiling" to lower L2 and VRAM access. Ie using it to store things used repeatedly. Of course it cannot use it for everything so you will access L2 and VRAM too but I believe VKbest's point was that DLSS relies heavily on L1 memory hits and is limited by space. personally haven't used Nvidia NSight but if you have access to it you can check this with your game/algorithm.
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winjer
Gold Member
But that is just for locality. It's almost an OoO but specific for matrices operations.
It might mean you can keep some operations a bit longer, but they will be eventually evicted to L2 or vram, when not needed.
Considering that ML operations are very latency intensive, it's probably that most of the DLLS model is kept in the L2, just like AMD does.
Not in every game.
SH is a ghosting town no matter the temporal aa thrown at it, or the source resolution.
That's the kind of stick that is usually the last resort - locality optimisations (including subdivision you mentioned) will already give you statistically measurable increase in cache utilisation.
Locking of lines can be used as extra measure but it's not the first line of thinking, especially since it's a 'very' hardware specific approach. It's pallatable on consoles of old (modern ones - less so), but generally a very poor fit for PC.
At any rate - what Cerny explained of PSSR was heavily relying on registers for storage instead of caches (which is not very different from what you suggest either, but again - console architecture so they can get away with it).
His main point is that eviction may be manually managed instead of relying on data-layout. The rest you are basically talking about the same things.
CentralScrutinizer
Member
What is the validity of all of these rumors and theories as to what we will get? Right now I don't see the value in a Pro when I have a PS5 already. Will this change the narrative on the leap it provides over the base model?
If the Pro offering quality mode at performance framerates wasn't something that interests you already then PSSR2 isn't going to change that. It will just likely reduce some artifacts and at best boost fps a little more. Not sure what you are expecting of it.
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Mr Moose
Member
"The algorithm they came up with could be implemented on current-generation hardware," said Cerny. "So the co-developed algorithm has already been released by AMD as part of FSR 4 on PC. And we're in the process of implementing it on PS5 and it will release next year on PS5 Pro."
Not sure how accurate the persons leaks are but we know it's happening this year, so time will tell.
Duchess
Member
Many are banking on PSSR2 providing 4K 60fps, in quality mode.
Chatter from devs and Sony themselves seems to suggest that this could be the reality. We'll have to wait and see, though. I'm happy with my Pro, but I'll temper my expectations.
Physiognomonics
Member
MisterXDTV
Member
FUBARx89
Member
Resident Evil 4 just got an update could this signal the pssr update coming soon
lol. No.
It's a banner to buy RE9
Wait whats this about the technology being implemented on the base console?
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The Pweep
Member
Well thats
Wait, what's this about the technology being implemented on the base console?
Lagspike_exe
Member
TAA is cleaner than PSSR in GT7.
saintjules
Gold Member
I don't know if that's true. PSSR was always for the Pro. I don't think these features can be on a base PS5 unless it's a gimped version.
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Performance hit would be too great on a base I would say. I would be very surprised if it came to it.
Seomel
Member
You are weird. People are expressing interest and excitement in tech in thread for it, yet you come here and complain about not talking about something else.
DenchDeckard
Moderated wildly
Is there anything official on this yet, or any comments around death stranding 2 incorporating pSSR?
The FSR fizzle is killing that game for me in certain lighting conditions and weather.
Also, if there is no comments. Has anything been mentioned of a PC version of DS 2 and can you move saves between pc and playstation on DS?
The FSR fizzle is killing that game for me in certain lighting conditions and weather.
Also, if there is no comments. Has anything been mentioned of a PC version of DS 2 and can you move saves between pc and playstation on DS?
TrebleShot
Member
No it was always a rumour.
One I personally don't believe.
Skifi28
Member
Yeah, remember in the past when nobody was excited about how many bits your console had or marketing hype like blast processing? We live in such weird times.
omegasc
Member
Last time I checked there was no cross save. Maybe DS2 will have if there's PSN integration?
squallbr
Member
Its CASHcom
Tiago Rodrigues
Member
You mean a big update that could potentially change how upscalling is done in a platform overall? Sounds like a pretty big reason to be excited.
About games...i could have 2 years without buying a single game and i'd have a backlog. I'll be fine. I think most people have backlogs on gaf from what i usually read. We don't need a new big game to be released every month. And if new games were lacking, February is a good month for those anyway.
winjer
Gold Member
PSSR2 is FSR4 Int, so there is a lot of information about it, due to the AMD leak.
PaintTinJr
Member
No, I'm pretty sure Cerny implied PSSR2 and FSR4 will still be separate solutions in joint talk with AMD, so I wouldn't be surprised if we get choices in Pro versions of games for FSR4 and PSSR2 to even compare them.
edit:
Also AFAIK the weights for the FSR4 leak were missing. So without the neuron weightings from AMD's model training with weight backpropagation we can't be sure how close to actual FSR4 the leak in INT form is.
Do we know if they just got the weights from a RX 9070XT driver which will be FP8 ? Or did they just go with 0.5 - down the middle - for all weights and leave the solution unoptimized? Or do some training with some games to get some weights?
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omegasc
Member
do we know this for sure? How about optimizations for the PS5 Pro hardware?
yeah, I don't think it was ever said it's all the same. Just the model and training IIRC, and shared development advancements on the main branch.
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winjer
Gold Member
From what Cerny talked about, it's a group effort. That is why they are calling it Amethyst, as in the Red from AMD, plus the Blue from Sony.
The FSR4 Int was a still a work in development version, but it was enough for AthleteDependent926 to compile them into the dlls we got.
What was missing was the weights of the FP8 version.
MisterXDTV
Member
Skifi28
Member
Did FSR reconstruct your genitals wrong or something?
winjer
Gold Member
Radical_3d
Member
Giallo Corsa
Member
thing is yal are more excited today about upscaling then big games,before we had big games and yes tech was defintely talked about alot but today games are already 4k at most run 60fps,its like eveyone ignores tht we had no big games for years compared to before but are excited for a patch
Skifi28
Member
wat
There's been tons of big games these past few years to the point I can't keep up to play them all. I wonder how narrow your tastes must be if nothing that releases interests you. The issue is not tech, it's you.
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Danjin44
The nicest person on this forum
If you cant find nothing to play then issue entirely on you, there are shit tones of great games coming out almost every year.
My taste in games is also very narrow compare to most people but and yet I can still find crazy amount of games to play.
I have very hard believing people can't find NOTHING to enjoy, the only thing I can think of is they must have lost their joy for this hobby.
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The Pweep
Member
I believe that with all these new games on the horizon will take advantage of the new update. From the new Resident evil to GTA6 and im sure we also hope for games like Silent Hill 2 to get new updates as well clean up the visual qualities. So there is a lot to be excited for. New and existing titles
omegasc
Member
the upscaler can benefit both games that we have been playing (GT7, DS2) and future titles (RE9, GTA6, FF7 Part3). You will find most of the people here posting in other games' threads as well. Are you sure you have nothing better to do or play right now instead of complaining about an issue you made up in a thread dedicated to this specific tech?
mckmas8808
Mckmaster uses MasterCard to buy Slave drives
Why can't we be excited about both? Tech and Games?
Danjin44
The nicest person on this forum
I cant really get excited for tech because in the end all "high tech" comes down to make the game look photorealistic as much as possible which to me its boring.
ShakenG
Member
In this case, its to improve picture quality. That shouldnt be frowned upon.
DenchDeckard
Moderated wildly
Has there been any update on this from anyone?
Can we still expect an update within a month and a half?
I hope DS 2 gets updated
Can we still expect an update within a month and a half?
I hope DS 2 gets updated
David_Android
Banned
thanks for the laugh thats a good one.
Fsr 4 is so good even ultra performance i playable on a 4k screen just Tested it in Cyberpunk. Pssr 2 is the same it just tartgets reolsution different not fixed like a pc.
Pro will get huge Fps boost, if Ultra perfromance gets viable. On a 4k Screen 3m away it looks pretty good and gives huge performance boost.
Radical_3d
Member
Thank you for bumping the thread asking about information in the thread where if there were information it would be posted, hence bumping it in the first place, Deckard. Very informative. I'm not desperate or anything.
DenchDeckard
Moderated wildly
Bro, I'm dying over here. I've witnessed DS 2 get announced for PC and now I'm stuck in this spiral of thinking I've wasted 160 hours on a game with terrible foliage and fizzle, shimmering, all of it when it's raining etc. which is an important part of DS2.
I've just woken up in the UK and was hoping for some good news.
Or that Sony will announce a playstation login for DS2 that pulls saves. Like Hades or Xbox games.
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