[SOLVED] PS5 SSD . A whole new level?

[frostmouth2]

PS5 tech got the best of me. So the 5.5GB/sec is the sequential read and write speeds of the SSD. But the compressed data in Kraken format gets decompressed in 9GB/ Sec or even upto 22 GB/second that counts to at least 4 times PCI-E Gen 4.0 SSDs on the market currently offers ( like corsair's MP600 has 4950MB/sec). So does PC has a built in technology in the main chip to automatically decompress data this many times faster? Shouldnt be this the real world read/write speeds of the PS5? I am a PC gamer and it makes me confuse because I want to biild a PC that beats a PS5 in every way.

 

[kanewolf]

PS5 tech got the best of me. So the 5.5GB/sec is the sequential read and write speeds of the SSD. But the compressed data in Kraken format gets decompressed in 9GB/ Sec or even upto 22 GB/second that counts to at least 4 times PCI-E Gen 4.0 SSDs on the market currently offers ( like corsair's MP600 has 4950MB/sec). So does PC has a built in technology in the main chip to automatically decompress data this many times faster? Shouldnt be this the real world read/write speeds of the PS5? I am a PC gamer and it makes me confuse because I want to biild a PC that beats a PS5 in every way.

If you read in 4GB/s and that 4GB is compressed 2 to 1, then when expanded you have just effectively read at 8GB/s So as long as the decompression can be done in parallel with the reads, and in real time then you get the higher effective read rates. This is standard marketing math.

 

[Maxxify]

5.5 GB/s reads, they did not state write speed anywhere. It'll be lower than the read speed and it would be SLC cache and not native flash speed anyway. The PS5 uses a custom controller, likely Phison-based due to the presence of a co-processor. I covered it during the livestream here. This is the slide they showed for compression. Compression is nothing new, you can do it on your own PC and there are even SSDs that have it built in, if you're trying to get a leg up on storage performance the SSDs for that don't exist yet. There are plenty in the works and they will be faster than the PS5's but most higher-end consumer NVMe drives are 8-channel while the PS5's is 12-channel, but bandwidth wise you will definitely get there (the PS5 can take on extra SSDs if they exceed 5.5 GB/s because the compression engine is separate).

 

[FurryVengence]

Even since the announcements started I've been very reserved about any enthusiasm. Sure in an affordability sense and pure accessibility sense consoles getting SSDs at all is a pretty awesome perk. For console players.
Curious about all this marketing talk about using the SSD as additional "RAM" and if that will be the so called "edge" and extra power the consoles will apparently hold to make them better then pc.

To me it seems like marketing until we get games in the real world. The UE5 Demo didn't really impress me much. I don't believe anything until I see its clearly being actually played and I don't believe that demo was really playable. I think it was just a video clip. Especially with considering the fact Sony definitely sponsored that "unveil" And I look back at Sonys claims of "Toy story like graphics" for the PS2 and that pure lie of a "demo" for KillZone 2. To me what Xbox showed was a more realistic take on what gamers will see in the next year or so. Maybe even further. But even with all both mentioned I dont see what real leg up these machines would have on top of the line PCs.