-
Ever wanted an RSS feed of all your favorite gaming news sites? Go check out our new Gaming Headlines feed! Read more about it here.
What’s the difference between the PS5 SSD and the Series X SSD?
- Thread starter Ivanovic
- Start date
- Status
DF Direct: PlayStation 5 - The Official Specs, The Tech + Mark Cerny's Next-Gen Vision
Mark Cerny delivered an developer-focused tech talk on the PlayStation 5, covering off its key next-gen technologies and the philosophy behind them. We also ...
youtu.be
DF does a much better job explaining everything than the Cerny presentation imo
Xbox Series X has a really fast SSD that is game changing. PS5's is twice as fast as that.
PS5: Custom 825GB SSD Storage Drive
IO throughput (speed) is 5.5GB/S (Raw), 8-9GB/S (Compressed).
Xbox Series X: 1TB NVMe SSD Storage Drive
IO throughput (speed) is 2.4gB/s (Raw), 4.8GB/s (Compressed).
The PS5's drive is much faster basically. By around 129%.
IO throughput (speed) is 5.5GB/S (Raw), 8-9GB/S (Compressed).
Xbox Series X: 1TB NVMe SSD Storage Drive
IO throughput (speed) is 2.4gB/s (Raw), 4.8GB/s (Compressed).
The PS5's drive is much faster basically. By around 129%.
One is faster than the other and I/O also potentially faster (I don't think we have all details from XSX yet).
This. And John (?) from DF was on twitter raving about the PS5 SSD. It sounds like it really might offset the raw power of the XSX.
High read/write speeds are great in theory, but often are bottlenecked by other factors. SONY created a custom chip to eliminate those other bottlenecks and make the SSD perform as fast as possible. This means that, if what they are saying is true, it is capable of much higher real world speeds than MS's SSD.
They're both similar. They both are customized PCIe 4.0 NVMe M.2 SSDs, they both utilize hardware based decompression, and they both run on x4 lanes. They're also both specifically made for their respectively scaled AMD chips.
The PS5'S SSD is 825GB for a reason: to reduce costs.
Sony made a custom 12 channel flash controller and is using faster flash with less capacity (both of these are likely Samsung). Games have access to 6 channels, which allows more two more lanes than the SSD supports.
As such the PS5 SSD can hit 5.5GB/sec when processing uncompressed data. That's the rate in which raw, readily available assets can be loaded into the RAM->CPU->GPU pipeline for processing.
The Xbox Series X likewise uses a similar method, but MS built a while new DirectX storage API to accelerate and streamline data streaming.
Its part of the new Velocity Architecture that binds hardware and software.
With DirectStorage and the 1TB SSD, the XSX can push 2.4GB/sec decompressed data streams. It's slower, but the optimized software stack might be much more tightened than Sony's.
MS is also enabling custom installation of games on a system level. Devs can choose whether or not they support it.
The PS5'S SSD is 825GB for a reason: to reduce costs.
Sony made a custom 12 channel flash controller and is using faster flash with less capacity (both of these are likely Samsung). Games have access to 6 channels, which allows more two more lanes than the SSD supports.
As such the PS5 SSD can hit 5.5GB/sec when processing uncompressed data. That's the rate in which raw, readily available assets can be loaded into the RAM->CPU->GPU pipeline for processing.
The Xbox Series X likewise uses a similar method, but MS built a while new DirectX storage API to accelerate and streamline data streaming.
Its part of the new Velocity Architecture that binds hardware and software.
With DirectStorage and the 1TB SSD, the XSX can push 2.4GB/sec decompressed data streams. It's slower, but the optimized software stack might be much more tightened than Sony's.
MS is also enabling custom installation of games on a system level. Devs can choose whether or not they support it.
Some incorrect info.
PS5 storage subsystem and filesystem is VERY tight and tailored for SSD: https://twitter.com/rygorous/status/1240333634332053504
Xbox Raw bandwidth is 2.4
PS5 is 5.5
Both use hw compression, but Xbox uses zlib (like PS4) with up to 6gbps max throughput while PS5 uses Kraken with up to 22gbps throughput.
Of course it is only for highly compressable data.
Also Kraken is more efficient (Cerny said 10% better compression).
God damn..excellent post..I don't know Jack shit about SSD's but can totally understand this. Props.
This analogy makes no sense because SSJ2 Gohan is superior in every way.
It's a horrible analogy, actually.
We have a thread open for PS5 / Series X comparisons. This question can be asked there:
www.resetera.com
Side-by-side official next gen flagship specs: Xbox Series X and PS5 spec sheets
We now have the specs for both flagships from Eurogamer, so I thought those of us who buy both and want a sense of how they’ll compare for games coming to both can take a look. I checked with the mods and they said they will monitor because this discussion is not for a war over who you like and...
www.resetera.com
- Status