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I could definitely be wrong, but isn't Sampler Feedback Streaming something you do with the Sampler Feedback feature.
Like MS has an devblog on how you can use Sampler Feedback to optimise streaming by improving mipmap usage and stuff.
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I get what you're saying. In this case it's best to wait for some additional info before making definitive statements.
I saw some people claiming that not based on the SOC, honestly I have no idea.
If this is the case I think this would be the end between sony and AMD.
I can wait for the DF vid on the new RDNA tech.I saw some people claiming that not based on the SOC, honestly I have no idea.
I read that a lot in this thread, is there any source for this? Phil Spencer had the console in December last year, is this considered late?
Thanks Alex, very useful insight as always. Will DF be covering the amd keynote at some point?
interesting times ahead.
bringing it home doesn't necessarily mean he had the final unit. we have Jason Schreier and others who claimed MS was behind Sony in getting dev kits out and iirc DF made similar claims and now we probably know why.I read that a lot in this thread, is there any source for this? Phil Spencer had the console in December last year, is this considered late?
I remember the simpler times when the omission of RT on retail series x packaging meant MS were hiding stuff. Ahhh those were the days. 😜
be interesting to see if this has any real tangible difference going forward but it at least dispels some of the more "out there" concern threads we have seen recently
He reiterated it but with spin from Sony because he got in trouble, saying that microarchitecture generations aren't real and that Sony added to it, but then said it's still missing a feature from RDNA2. He didn't specify which one though.
As I said, we'll have to wait and see if it amounts to anything tangible.
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Not sure how it will bear out in games tbh. Especially considering the two SKUs on the XSX. Will devs working on multiplats be incentivized to fully utilize all the extra hw accelerators in the XSX/S ? I don't know.
I think that has always been their goal. "Direct X" box. Direct X12 U is the unifying backend for it.
What defines "full" RDNA2? Both PC and Xbox share a common graphics API in DirectX 12U.
Is "full" to mean the same feature-set as PC discrete GPUs?
Is the PC implementation of RDNA2 considered canon that the consoles can align with or deviate from?
Is this blog post essentially saying Windows and Xbox use DirectX 12U, while playing up to a some uncertainty that has been doing the rounds for months?
Sony obviously won't be using DirectX, but their own GNM API, along with any RDNA2 features specific to them that don't feature in the PC/Xbox space, like their Coherency Engines and GPU cache scrubbers.
Does that mean PC isn't using the "full" Sony RDNA2 feature-set?
If (hypothetically speaking as I'm hugely skeptical of the rumour) PS5 has something like the Infinity Cache implemented on PC, where as Xbox does not, what does that mean? Infinity Cache isn't a feature exposed to any API, so does it get counted as contributing to the "full" moniker?
Microsoft marketing department are clearly aware of the various doubts and uncertainties floating around and are playing into them, regardless of how misinformed or pointless the argument is.
Is "full" to mean the same feature-set as PC discrete GPUs?
Is the PC implementation of RDNA2 considered canon that the consoles can align with or deviate from?
Is this blog post essentially saying Windows and Xbox use DirectX 12U, while playing up to a some uncertainty that has been doing the rounds for months?
Sony obviously won't be using DirectX, but their own GNM API, along with any RDNA2 features specific to them that don't feature in the PC/Xbox space, like their Coherency Engines and GPU cache scrubbers.
Does that mean PC isn't using the "full" Sony RDNA2 feature-set?
If (hypothetically speaking as I'm hugely skeptical of the rumour) PS5 has something like the Infinity Cache implemented on PC, where as Xbox does not, what does that mean? Infinity Cache isn't a feature exposed to any API, so does it get counted as contributing to the "full" moniker?
Microsoft marketing department are clearly aware of the various doubts and uncertainties floating around and are playing into them, regardless of how misinformed or pointless the argument is.
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yes, Microsoft showcased DirectML "Super resolution" back in 2018, using Forza Horizon 3 as a demo and a nvidia card. They rendered it at 1080p and then upscaled with DirectML to 4k, comparing to standard bilinear upscaling. You can watch it here, demo starts at 16:00.
The VRS hw for example can save a lot of GPU resources and enable higher framerates by varying the quality of shading within different parts of a scene. If Sony doesn't have a similar hw accelerated solution, devs that take advantage of this will be able to offer better performance(fps) in games. The other thing is SFS. If Sony doesn't have a similar hw solution, the GPU will be able to render higher quality scenes while saving on RAM despite not having as much I/O bandwidth for larger complex scenes like Sony's SSD provides.
IIRC correctly the other thing is mesh shaders vs primitive shaders, for that we have to wait and see whether Sony's geometry engine which uses primitive shaders can match up with the more advanced mesh shaders. This is all without considering the higher TFLOPs, higher number of RT cores and most importantly higher memory bandwidth available for the XSX GPU.
But again, all this means nothing if devs don't fully take advantage of these features.
As other people explained in the thread, it might not be necessary if Sony has its own solution.
If it's not the case, I really don't know, to cut costs?
Out of curiosity why would developers not take advantage of these features when they more than likely will take advantage on the PC side? This doesn't seem like something developers would just skip out on unless it is a game that was in development before they could account for said features.
I mean no. That's like saying the C#8 or C++ 20 is harder to program for than the previous iterations. It's just more features to use, but it's not "harder " at least not in the traditional way people would think.
Not really surprising since they are using some pieces that are part of RDNA 3.
Does anyone actually have a list of the full RDNA 2 Architecture?
I think its just PR talk, being full RDNA2 isn't a bad or good thing, xbox just happens to be the only console with the full rdna 2 architecture. Both nextgen system use a custom rdna 2 architecture , MS just happen to use the full feature set of RDNA 2 set by AMD. Without knowing whats custom about Sony's version the speculation just becomes endless.
Reddit is great for cat videos and random fact of the day. Not much more than that lol
The XSX GPU definitely doesn't have infinity cache. With 560GB/s memory bandwidth, its not bandwidth starved. On the other hand. considering the PS5 already has about 76MB of SRAM for the I/O complex it would be expensive to add 128MB of GPU L2 cache. I wouldn't expect either system to spend so much on GPU cache. higher CPU L3 cache would have more impact on performance imho.
It's really interesting to me that they say Xbox uses all features of it and that's why games were delayed...implying a lot of this is firmware stuff? Does this mean things the PS5 lacks could be updated? I may be misunderstanding here.
What's interesting also is that Sony very specifically helped develop a lot of features in RDNA2, per Cerny's Road to PS5. I wonder how that fits into this.
What's interesting also is that Sony very specifically helped develop a lot of features in RDNA2, per Cerny's Road to PS5. I wonder how that fits into this.
Wait and see. We just don't know how the consoles will stack up quite yet. I suspect if there are any differences coming from RDNA2 that they will take a little while to manifest as the games coming out in the next six months probably didn't have devs thinking about the tech.
Yes they would've, as Nvidia isn't in the affordable APU business.
Obviously they'll take advantage of these features. My question is to what extent and how easy are they to implement. I'm sure VRS for example requires some extra optimization to ensure there isn't a single scene where the wrong object gets lower quality shading. Its an amazing feature nevertheless and is probably going to be the biggest advantage if Sony doesn't have something similar.
3? Could've sworn there were pieces from RDNA5, to better match the PS5's design philosophy.
Didn't think a DLSS equivalent was possible for next gen consoles but this makes it exciting.
Massive? No. It's just features that will provide benefits for optimizations across devices that utilize DirectX. The same way as PS5 custom GPU features will provide benefits for games in PS5. The difference here is that Sony decided to do its own software solutions, which can be better, worse, or equal.
In an interview with Eurogamer Xbox stated there is about 76MB of on die memory so I highly doubt there is any infinity cache nor any need for it. The GPU isn't bandwidth starved.
Timing and cost. AMD doesn't just give you the features and Sony has a timeline they have to worry about.
People keep saying this but do we really think Sony and Microsoft won't bring out new models half way through the gen anyway?
Who knows, maybe they're using methods that are better suited to their own low-level api. It's going to be speculation town till Sony comes out with a hot chips of their own.