3 ms·

While not user replaceable, you can still stick in a NVME M2 SSD in there, so not a big deal imo, unless the soldered SSD fails.

jacurtis 6y ago
Oh that is good to know. I wasn't aware that they supported NVME M2 SSDs. That actually is a really thoughtful addition that I wouldn't have expected.
- adamtulinius 6y ago
  It's in the video: https://youtu.be/CaAY-jAjm0w?t=165 https://youtu.be/CaAY-jAjm0w?t=165
- ganoushoreilly 6y ago
  I'm pretty sure it's PCIE4 and requires a minimum of 5k - 7K IOPS though so just any NVME won't do.
  - wtallis 6y ago
    The performance requirement for third-party SSDs has been stated in terms of read throughput, where the built-in PS5 SSD provides about 5.5GB/s and third party SSDs may need to be a bit faster to provide the same QoS. This is referring to sequential read speeds, generally measured with 128kB or larger IO sizes. When SSD performance is stated in terms of IOPS, that's usually referring to small block sizes (4kB) and random IO rather than sequential. (Strictly speaking, the access pattern that matters most for games will probably be something like 128kB random reads, so the attained throughput when a game is streaming in chunks of partially-resident textures on the fly is likely to be somewhat lower than purely sequential reads.)
- Narishma 6y ago
  They show it pretty clearly in the video at the start of the teardown.
djsumdog 6y ago
I'm wondering how that NVME will work. The big push of the PS5 was that those built-in SSDs push a huge amount of data with their custom storage controller, allowing loading of assets in read time during gameplay. I'm guessing the NVME will be for storing some game assets it can swap out for less frequently played games; but that data would still need to be transferred back to the onboard SSD when the game is loaded back up?
- dstaley 6y ago
  The lead architect of the PS5 said that NVMe drives will need to be a bit faster than the built-in SSD to make up for the fact that they don't have the optimizations that Sony has for the built-in controller. Essentially only the highest performance PCIe 4.0 NVMe drives will be fast enough for the PS5.

jacurtis 6y ago

Oh that is good to know. I wasn't aware that they supported NVME M2 SSDs. That actually is a really thoughtful addition that I wouldn't have expected.

adamtulinius 6y ago
It's in the video: https://youtu.be/CaAY-jAjm0w?t=165 https://youtu.be/CaAY-jAjm0w?t=165
ganoushoreilly 6y ago
I'm pretty sure it's PCIE4 and requires a minimum of 5k - 7K IOPS though so just any NVME won't do.
- wtallis 6y ago
  The performance requirement for third-party SSDs has been stated in terms of read throughput, where the built-in PS5 SSD provides about 5.5GB/s and third party SSDs may need to be a bit faster to provide the same QoS. This is referring to sequential read speeds, generally measured with 128kB or larger IO sizes. When SSD performance is stated in terms of IOPS, that's usually referring to small block sizes (4kB) and random IO rather than sequential. (Strictly speaking, the access pattern that matters most for games will probably be something like 128kB random reads, so the attained throughput when a game is streaming in chunks of partially-resident textures on the fly is likely to be somewhat lower than purely sequential reads.)
Narishma 6y ago
They show it pretty clearly in the video at the start of the teardown.

djsumdog 6y ago

I'm wondering how that NVME will work. The big push of the PS5 was that those built-in SSDs push a huge amount of data with their custom storage controller, allowing loading of assets in read time during gameplay. I'm guessing the NVME will be for storing some game assets it can swap out for less frequently played games; but that data would still need to be transferred back to the onboard SSD when the game is loaded back up?

dstaley 6y ago
The lead architect of the PS5 said that NVMe drives will need to be a bit faster than the built-in SSD to make up for the fact that they don't have the optimizations that Sony has for the built-in controller. Essentially only the highest performance PCIe 4.0 NVMe drives will be fast enough for the PS5.