"I also think both Microsoft and Sony engineers helped AMD in collaboration, which would've also benefited their development of Ryzen-4000 platform. With the only stipulation that AMD doesn't make and sell similar APUs on the market. Hence why Ryzen-4000 uses the obsolete Vega iGPU and that the Radeon Division has yet to release any RDNA2 dGPU to the market. They're waiting for the consoles to release first, well, it is AMDs cash cow anyway. Gaming PCs will soon dwarf the consoles again, but not until 2022. Just like how the 2005 Xbox 360 was competitive with PCs back then, or in 2002 with the Xbox, or in 2000 with the PS2... or back even further to 1996 with the N64. Consoles can be competitive, but they never make a lead and hold on to it."
"Just FYI, it's priority levels/que levels, not lanes that NVMe and the new Sony NVMe drive have.
And I believe it is quite possible that the main difference between the Sony Drive 5.5GB/s and the Microsoft 2.4GB/s has more to do with PCIe lane provisioning...
Sony has been clear that they have 'a' m.2 bay, while Microsoft has also been clear that they have two slots (internal and external)
Per the specs, Sony definitely is using a PCIe Gen4 with x4 lanes for their M.2 and drawings from Microsoft would indicate that they broke that up into two separate x2 lanes chunks, one to internal and one to external. The AMD parts likely only has a certain number of PCIe lanes and i would be very surprised if Microsoft had a total of 8 extra PCIe Gen4 lanes vs Sony's x4. The logical conclusion is that the reason Microsoft's numbers are lower is due to half the lanes. I guess we will find out."
PCMR πέτσωμα:
"Commodus - Friday, June 12, 2020 - link
This article touches on something a lot of the hardcore PC fans don't seem to understand -- that this gives the PS5 and Xbox Series X a functional advantage over the typical gaming PC for a while.
Your average PC gamer probably has a 7,200RPM drive, or maybe an SATA SSD if you're lucky. It'll be years before most PCs have NVMe drives, and developers will have to factor that in when developing for computers. I don't expect PS5/XSX games to make the absolute most of their drives for a while, but there really could be a period where there are gameplay experiences that are only practical on consoles."
"Billy Tallis - Friday, June 12, 2020 - link
High-end PCs will have faster SSDs by the end of the year. Faster GPUs with equal or greater VRAM a year. They already can have enough CPU cores to compensate for not having the other dedicated hardware. The only disadvantage that's going to stick around is slower communication between CPU and GPU, because PCIe 4 x16 is no competition for cache coherent on-die communication.
It might possibly take PCs 5 years to catch up to console affordability for comparable performance."
"shelbystripes - Friday, June 12, 2020 - link
It could only be a 1TB (1024GB) drive if the number of channels was 2 to the n (2, 4, 8, 16, etc.)
The PS5 uses a 12-channel drive controller and 12 channels of DRAM. You have to use NAND cells of the same capacity on all channels, so to hit 768GB (824.6 fictional/misleading GB), you need 12 channels of DRAM capable of storing 64GB each. That math is simple. Everyone making TLC/QLC NAND makes 64GB NAND packages.
A 1TB drive with 12 channels would require NAND cells with capacity (1024/12) = 85.333GB each. Nobody makes NAND cells in that capacity, that I’m aware of.
It’s possible that Sony is using 96GB NAND packages, for a total of (96x12) = 1152GB (truly 1.1TB) of raw storage space, and they’re reserving over 300GB of it for over-provisioning and the OS. But since when has Sony ever taken the conservative advertising route?"
"ads295 - Friday, June 12, 2020 - link
> "Sony's patent proposes going way beyond 32kB chunks to using 128MB chunks for the FTL, shrinking the mapping table to mere kilobytes. That requires the host system to be very careful about when and where it writes data, but the read performance that gaming relies upon is not compromised."
I have observed on my PSP that when the system is saving games, the LED for the Flash memory access shows constant activity in the latter half of the "Please wait" screen, suggesting that Sony know how to do this very well and are taking it to the next level."
almighty15 - Sunday, June 14, 2020 - link
I don't normally comment on article like this but feel I have due to the tone you have regarding PC 'catching up' to consoles.
That is a long way away, I'm talking years! As I explained on Twitter a 5Gb/s NVMe drives loads games no faster then a 550Mb/s SATA III SSD, and while some of that is down to having to cater to machines that still run mechanical drives most of it is due to Windows just having a file and I/O systems that decades old.
If we want to send a texture to a GPU on PC this is the 'hardware' path it has to take:
SSD > system bus > Chipset (South bridge) > system bus > CPU > system bus > main RAM >
system bus > CPU (North bridge) > PCIEX bus > VRAM
To get a texture to GPU memory on PlayStation 5 it goes:
SSD > system bus > I/O controller > system bus > VRAM
On PC these system buses and chips all run and communicate with each other at different speeds which causes bottlenecks as data is moved through all that hardware.
On PS5 the path is so much straight forward and the I/O block runs at the same speed as the CPU clock so it's all super faster and efficient.
And then on PC there's the software side of it, which again is a HUGE problem that Microsoft can't fix with a little Windows update. The hardware on PC can not directly talk to other hardware, meaning your GPU can not directly talk to the storage driver and ask it for a texture, it has to ask Windows, who then ask the chipset driver, who then asks the storage driver for a file.......
It requires a complete RE-WRITE of Windows storage drivers and kernal which is a process that takes years as they have to send any new idea's over to developers and software owners so they can do their own testing and plan patching their existing software.
When Apple updated their file system for SSD it them 3 years! And they way less legacy hardware and hardware configurations to worry about then Micorosft.
There is currently nothing in the develop changes about a new version of Windows or a new file system in the works meaning that it's at least 3-4 years away.
This article doesn't even scratch the surface as to why storage and I/O is so slow and bottlenecked on PC and make it out to be like it's a simple fix to get PC SSD's performing like consoles.
PC's will catch up, they always do, but do not let articles like this one trick you in to thinking it's a quick fix as it most certainly isn't.
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