Saylick
Diamond Member
- Sep 10, 2012
- 4,093
- 9,568
- 136
I believe the requirement is higher than 5.5 GB/s to account for some overhead since third-party NVMe drives won't have controllers as tightly tuned to the PS5 as the one that comes with the console. Not sure what the minimum bandwidth to overcome the overhead is, but Sony will release a list of validated third-party drives that work with the PS5.IIRC the drive needs to be decently faster than 5.5 GB/sec for a reason I don't remember.
https://www.eurogamer.net/articles/...s-and-tech-that-deliver-sonys-next-gen-vision
We've seen Microsoft's proprietary drives but Sony is sticking with its strategy of allowing users to buy off-the-shelf parts and fit them into the console themselves - so yes, NVMe PC drives will work in PlayStation 5. The only problem is that PC technology is significantly behind PS5. It'll take some time for the newer, PCIe 4.0-based drives with the bandwidth required to match Sony's spec to hit the market.
And then, Sony needs to validate them to ensure that they will work properly. The PS5 will have an NVMe slot, but drive compatibility will be paramount. It's not just a bandwidth issue either, though clearly that is a factor. PS5's spec delivers six priority levels to developers, while the NVMe spec has just two.
"We can hook up a drive with only two priority levels, definitely, but our custom I/O unit has to arbitrate the extra priorities - rather than the M.2 drive's flash controller - and so the M.2 drive needs a little extra speed to take care of issues arising from the different approach," says Cerny. "That commercial drive also needs to physically fit inside the bay we created in PS5 for M.2 drives. Unlike internal hard drives, there's unfortunately no standard for the height of an M.2 drive, and some M.2 drives have giant heat sinks - in fact, some of them even have their own fans."
In short, expandable storage is possible and you won't need proprietary drives from Sony to get the extra space you want. However, in the short term at least, the advice is simple: don't buy an NVMe drive without Sony validation if you plan to use it in PlayStation 5. Also remember that extreme bandwidth PCIe 4.0 NVMe drives are likely to be very expensive - in the short term, at least. This is cutting-edge technology, after all. Obviously though, the outlook should improve significantly as the next generation progresses - and prices do tend to drop significantly over time.
Last edited:
