No you oversimplifying it and omiting specs. Like not even mentioning the 4 PCIE4.0 laned with direct acces from the apu to the ssd. The PS% is suposed to stream data directly from the SSD and from ram at the same time while also suposed to use the ssd as ram and some are speculating that the ps5 can run the OS and other background task bypasssing the ram cmpletly and reserving all 16gb for graphics. Remains to be seenn though its all rumors and speculations.

The 12 chanel vs 8 or 4 channels ssd is another thing. While yes each chanel is a factor the overall speed, each chanel has a limited data cap wich directly afects tranfers. as data is split between each chanel, but if data is on the same chanel in goes in order so one has to wait for the other and in case that data is sensitive it need to waait for it and stops the transfer of the other lane. Thats one of the reasons storage usually dosent transfer data as the top speed advertise. Having 12 chanels means that there is less chance for that to happen and has the the ssd working more at top speed.

Yes the ryzen equivalent is more to do with how much more work needs to be done. AS far as im aware. 

This guy explains it very simple and more in depth. ignore the click baity title of the video. he barely mentioned that. 

Definitely is allot... And ironically need more! I think I may keep the Series X as a Series X only gaming device and use my Xbox One X for Xbox One and older titles, not sure yet.

Based in South Australia, but have deployed to the United States and Europe a few times... And obviously assist wherever needed across Australia, plus do vertical rescue, marine rescue, road crash rescue, confined space, rescue from heights, hazmat and all the fun stuff.
Although deploying is out of the question during the COVID era, can't even go interstate, let alone overseas.

Been a few times where I have come home covered in someone elses blood... And the only thing you want at that point is shower, food and video games.

Let's cut through some of the bullshit here.

* The Playstation 5 has 4x PCI-E 4.0 lanes to the SSD. Not 8. It's identical to the Xbox Series X on this front.

* The Xbox Series X SSD can bypass Ram and stream data direct from SSD to the APU as well.

* The memory channel count is ultimately redundant, it's just a silly marketing point and you fell for it. - You have two ways to you can increase bandwidth, faster memory chips or more memory chips. - Sony took the "more memory chips" route to solving the bandwidth problem.

Absolute rubbish.
The Xbox Series X has hardware accellerated compression/decompression.

No. The fixed function blocks that aid this are *not* equivalent to a Ryzen CPU core... They are fixed function, not flexible x86 processing cores.

There are certainly a ton of bottlenecks that can limit data transfer rates such as scheduling for example.

I would advise you not to "hang onto" every single utter word that Cerny murmurs... And there is a good reason for that. - Cerny is a paid employee of Sony and thus he has a conflict of interesting in inflating, supporting and big-noting his company and the products he is trying to sell.

Same goes for Phil Spencer and whoever is Nintendo's equivalent.


And no. Xbox doesn't only "have software". - The Xbox series X, like the Playstation 5 features hardware accelerated decompression/compression, which is also aided by software.
The companies might "brand" their approaches differently, but they share very similar concepts fundamentally, even if Sony's definitely has the performance edge.

That is exactly what the difference is.

The Xbox may be doing other tasks in the background, there are far to many variables like different operating systems, api's and so forth for one.
Undoubtedly the Playstation 5 has the bandwidth edge on it's storage and that will translate to load times and other nuanced differences.

However, the SSD is still dog-awfully slow compared to Ram.

The thing with SSD's on PC is that yes... They are getting cheaper all the time, but they are also getting faster and better... Consoles are different, they stagnate for the duration of their useful lifespan.

In a few years time... A 1 terabyte, PCI-E 4.0 SSD will be bargain-basement stuff.

I do prefer mechanical disks due to their resilience in cold storage scenarios though. Shame they are terrible performers comparatively.

LOL I have to say, that you did very well going through all the points and explaining everything but this last one made me laugh so hard...
You should have started with this and not waste time on the rest

Wrong on all accounts, this is not what Kaz Hirai told me

Like I said, im not the best to be explaining or debating this topic as I would just be repeting what someone else said. Make more sese to debate the guy on the video. 

The ssd being used as ram sounds dubious and I only claim that others are speculating about it. I never said That I belive that to be the case But I do belive that the ps5 will save a lot more of its ram for graphics than the xbox.

I hihghly doubt that the xbox had stuff runing in the background in thouse vids they themself put up. They are gona try to make the best example possible theres no way they will screw up like that. Still, they where diferent games, I still say untill the same game is compared theres no real comparison to be made.

I looked into the direct storage and I never claimed the ps5 had 4 extra PCIE4 lanes, I said it had 4 PCIE4 lanes and the xbox has none.  What xbox claims as direct storege is an API solution but that again is more software. But again I could be wrong I just could not find any mention.

Never claimed the "equivalent cores" are actually cores. Its in the very word "equivalent". Its ovbious what I meant its that it does the work of that, but it can only do that and its not flexible.

The more memory channel thing might be null, cant say that I know much for sure. But I dint get that from cerny, that again is from the video I linked and seemed resonable. 

Something I also forgot to mentioned was the 6 priority levels. But thats something I quite dont get much. All I get is that normal storage has 2. Maybe you can expand on that. 

You wrote, PS5-SSD has "4 extra PCIE4.0 lanes"... extra is suggesting 4 more than the standard.

Both the internal and the external Xbox-SSDs have PCIE4 lanes directly to the APU:

https://www.windowscentral.com/xbox-series-x-nvme-ssd-explained

Beyond loading speeds, though, Microsoft is developing new methods developers can leverage to utilize the SSD to reduce CPU overheads. Using what Microsoft is calling DirectStorage, developers on Xbox Series X (and soon, PC, as part of DirectX), developers can offload asset streaming CPU operations to the SSD, reducing the load on the CPU by a large amount. Microsoft describes it as follows.

"DirectStorage is an all new I/O system designed specifically for gaming to unleash the full performance of the SSD and hardware decompression. It is one of the components that comprise the Xbox Velocity Architecture. Modern games perform asset streaming in the background to continuously load the next parts of the world while you play, and DirectStorage can reduce the CPU overhead for these I/O operations from multiple cores to taking just a small fraction of a single core; thereby freeing considerable CPU power for the game to spend on areas like better physics or more NPCs in a scene. This newest member of the DirectX family is being introduced with Xbox Series X and we plan to bring it to Windows as well."

https://www.eurogamer.net/articles/digitalfoundry-2020-inside-xbox-series-x-full-specs

On the hardware level, the custom NVMe drive is very, very different to any other kind of SSD you've seen before. It's shorter, for starters, presenting more like a memory card of old. It's also rather heavy, likely down to the solid metal construction that acts as a heat sink that was to handle silicon that consumes 3.8 watts of power. Many PC SSDs 'fade' in performance terms as they heat up - and similar to the CPU and GPU clocks, this simply wasn't acceptable to Microsoft, who believe that consistent performance across the board is a must for the design of their consoles.

The form factor is cute, the 2.4GB/s of guaranteed throughput is impressive, but it's the software APIs and custom hardware built into the SoC ...

"Our second component is a high-speed hardware decompression block that can deliver over 6GB/s," reveals Andrew Goossen. "This is a dedicated silicon block that offloads decompression work from the CPU and is matched to the SSD so that decompression is never a bottleneck. The decompression hardware supports Zlib for general data and a new compression [system] called BCPack that is tailored to the GPU textures that typically comprise the vast majority of a game's package size."

Yea I looked back I did write extra lanes. That's my mistake. Still from What you posted it dosent specify the sdd has the 4 lanes skiping the ram. The pictures imply it. But the text still says its part of direct x.

Prove it.

That is fine.

We have been using SSD's and HDD's as "Ram" going back decades.
Heck, even the Original Xbox did it... It was called a "Swap File" or "Virtual Space".

It was essentially an extension to the DRAM memory space to allow developers more "breathing room". - It never replaced Ram, it couldn't, it wasn't fast enough... Just like the Playstation 5's SSD.

But it does "extend" your memory, which was the entire point of the Swap File's existence in the first place, to allow developers a larger "scratch pad" when they ran out of Ram... And the next-gen consoles are Ram limited, 16GB will be tiny by the end of the console generation.

I am not saying it does or doesn't. I am saying we simply "don't know".
The Xbox Series X and Playstation 5 are using entirely different software stacks, API's and so forth, it's not going to be Apples to Apples until we get an independent source to do direct comparisons empirically.

The Xbox Series X has 4x PCI-E lanes. It's actually identical to the Playstation 5 on this front.
Microsoft's approach isn't just software.

https://www.eurogamer.net/articles/digitalfoundry-2020-inside-xbox-series-x-full-specs

And I quote:
"Our second component is a high-speed hardware decompression block that can deliver over 6GB/s," reveals Andrew Goossen. "This is a dedicated silicon block that offloads decompression work from the CPU and is matched to the SSD so that decompression is never a bottleneck. The decompression hardware supports Zlib for general data and a new compression [system] called BCPack that is tailored to the GPU textures that typically comprise the vast majority of a game's package size."

Fixed function blocks are extremely efficient, because they are designed for singular task, which is why we use them in the computing sector.
Ryzen cores are just very different and definitely more powerful and flexible.

But normally we would spend an inordinate amount of CPU cycles doing decompression work, often because SIMD instructions aren't being leveraged fully, sometimes because there is a bottleneck in the code path or something else entirely.

The Playstation 5 does have more memory channels, but again, it's a redundant dot point and on it's own... Useless.

For example... You can have an 8x 32bit memory controller for a graphics card with it's Ram running at 1Ghz.
Or you can have a 4x 32bit memory controller for a graphics card with it's Ram running at 2Ghz.

They will provide identical bandwidth.

Basically data can be prioritized based on urgency.

SSD controllers already have such technology, it's just not as finely grained or intuitive to leverage, what it means for gaming though, I am keen to see.
If it doesn't provide much in the way of real-world tangible benefits just like the extra ACE units in the Playstation 4, then it probably won't be adopted industry wide.

It's one of those things I need to see demonstrated by an independent source before I start proclaiming it's benefits.

Direct X is running on top of it all.
Sony has it's own API doing the same thing in essence.

I think the fact Epic re-wrote Unreal code to fully optimize for PS5 I/O controller is interesting and makes it accessible to everybody using Unreal.
As Cerny mentioned real benefits of SSD speeds don't linearly follow nominal speed, I see the same or equivalent approaches gaining traction
in PC space for I/O controllers, no sense trying to sell 4x faster SSD if there are other bottlenecks, so either Sony's own implementation or
compatible or similar approaches could become more common, making optimizing for those a common thing for high performance target games.

People posting here about stuff they clearly don't have the slightest general understanding of (4x PCIe lanes etc) is just not beneficial to discussion,
It makes person who brought it up ignorantly look stupid and doesn't really further their point, even if the think citing random factoids helps them.
If you're not really fully engaging in those technical elements, just don't bother, state your opinion in terms that are real for you, it comes off better.

retro gaming. 15 years from now when the online service is dead, can still play your games.