*BEST GUESS as to what SSD's will work... First of all, I believe there is a cartridge form factor so using your own M.2 SSD would use a cheap adapter. You likely then just slide that into the rear. Secondly, the important specs for the PS5 SSD are roughly: 1) 5.5GBps (uncompressed) or 9GBps (compressed) 2) up to 20x compression with Krakan 3) Six priority levels (i.e. to prioritize data to be sent first like audio)
Krakan is decompressed on a chip separate from the SSD so that's not an issue. Basically you need to be faster than 5.5GBps by an unknown amount to compensate for the lack of level assignment on normal SSD's. But the M.2 connection can only handle up to 7GBps of raw data. There's also the problem that cheaper SSD's drop performance once they start to fill up (as they for example reassign 4-bit to 2-bit which increases capacity but decreases performance)...
SO... the SSD likely needs to fulfill these basic requirements: 1) 7GBps sequential transfer speeds, and 2) No drop in performance (comparable to the more expensive Samsung "pro" models not the "EVO" models).
I fully expect Sony to have expansion SSD's made specifically for the PS5. They may be cheaper than what you would buy yourself since they can keep it at 5.5GBps if they use the exact same "level" assignment setup.
Microsoft's expansion SSD should be a lot cheaper. This may be a big problem for Sony until prices come down.
Comments 1
Re: Which SSD Drives Will Be Compatible With PS5?
*BEST GUESS as to what SSD's will work...
First of all, I believe there is a cartridge form factor so using your own M.2 SSD would use a cheap adapter. You likely then just slide that into the rear.
Secondly, the important specs for the PS5 SSD are roughly:
1) 5.5GBps (uncompressed) or 9GBps (compressed)
2) up to 20x compression with Krakan
3) Six priority levels (i.e. to prioritize data to be sent first like audio)
Krakan is decompressed on a chip separate from the SSD so that's not an issue. Basically you need to be faster than 5.5GBps by an unknown amount to compensate for the lack of level assignment on normal SSD's.
But the M.2 connection can only handle up to 7GBps of raw data. There's also the problem that cheaper SSD's drop performance once they start to fill up (as they for example reassign 4-bit to 2-bit which increases capacity but decreases performance)...
SO... the SSD likely needs to fulfill these basic requirements:
1) 7GBps sequential transfer speeds, and
2) No drop in performance (comparable to the more expensive Samsung "pro" models not the "EVO" models).
I fully expect Sony to have expansion SSD's made specifically for the PS5. They may be cheaper than what you would buy yourself since they can keep it at 5.5GBps if they use the exact same "level" assignment setup.
Microsoft's expansion SSD should be a lot cheaper. This may be a big problem for Sony until prices come down.