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Whats the PS5 OS footprint??

ANIMAL1975

Member
My OS is bigger than yours.
Dj Khaled GIF by Music Choice
 
OP wants to know how much RAM the PS5 Operating System takes up for system functions, I/O etc out of the 16GB of GDDR6 RAM.

I am going to guess-assume 3GB, which leaves 13 GB of GDDR6 available for games. I am assuming that, because (I dont have a PS5) the games have been made in a way that there is an integration/interactivity/interface/notification of the game before you even start playing it and load it-which seems needs quite a bit of system RAM to do so.
 

x@3f*oo_e!

Member
Video recording will take a BIG CHUNK, like it did on PS4.

Up from 720p30 to 1080p60, and a whole hour it's going to be a lot even with most recent codecs.

Save a full one to see exactly how much.

[and before anyone says/asks = no it doesn't use the SSD until you press save AFAIK] [edit = I'm probably wrong but it still needs a big buffer]
 
Last edited:

Snake29

RSI Employee of the Year
Video recording will take a BIG CHUNK, like it did on PS4.

Up from 720p30 to 1080p60, and a whole hour it's going to be a lot even with most recent codecs.

Save a full one to see exactly how much.

[and before anyone says/asks = no it doesn't use the SSD until you press save AFAIK] [edit = I'm probably wrong but it still needs a big buffer]

PS5 can manual record in 4K/60 HDR. Auto save recent gameplay from 5 sec to 30 min is in 1080/60 HDR. If you play 120fps modes of games, then you can only record in 1080/60 HDR.
 

ReBurn

Gold Member
With the RAM and SSD speeds I have to believe that there's some ultra fast paging going on that makes the available RAM less of a factor than in previous generations. Even if it used 3GB of the available RAM there's more room to use the SSD to hide any limitations.
 

Ev1L AuRoN

Member
If I have to guess, 3gb should be the case, probably it can free up some ram when is a gaming running, or maybe they just want to future prof the system, unlike PS3 that couldn't implement voice chat on a system level because there wasn't any ram left.
 

truth411

Member
The PS5 OS footprint havent been discussed by Sony. I'm Guessing if XSX is 2.5GB then Sony would be 2GB. Since Sony SSD is over twice as fast, they really dont need as much Ram reserved for the O.S.
 
PS4 OS footprint is 3 GB, PS4 Pro is 3.5 GB. Make that what you will.

Why don't they use slow DDR3 for OS functions? Why does the OS need GDDR6? Is it cause of the integration and unified memory thing and how difficult it is to program for 2 separate RAM pools?

Using the full 16 GB of GDDR6 for games can make monumental difference in graphics fidelity, and other things.
 
Microsoft made the right call leaving XSX's UI at 1080p. On PS4 Pro the native 4k UI eats almost 512 MB! Sony should have left PS5 's UI at 1080p.
 

Rayderism

Member
Well, if the SSD is 825GB, and you only get 667GB to actually use, wouldn't that mean the OS, for all intents and purposes, takes up 158GB? How much of that stays resident in memory at any given time......who knows.
 

IntentionalPun

Ask me about my wife's perfect butthole
Why do you care?

Not trying to be snarky here... the system can replace the entirety of its RAM even not considering compression in 3 seconds with very low CPU usage.

You don’t need as much RAM under those conditions.
 

Neo_game

Member
PS4 had 5gb for games and Pro 5.5gb. Although it is not mentioned on official specs Pro also had 1gb DDR apart from 8gb GDDR5. The one big advantage though with the SSD according to Sony is that PS5 RAM will need to store data for next 1sec of gameplay which was 30secs last gen.
 
Who cares?
..delete all your applications and see how much disk space is still in use?
I'd say this would be the answer if it weren't for the fact that most people (including people responsible for making the dialogues that convey that information to you) are too ignorant to account for kibibytes vs kilabytes (1024 vs 1000) and correctly label them, which poisons the entire chain and by the time you get to multiple TB range the discrepancy can be hundreds of GB...except that it's not, it's measured in GiB and just incorrectly labeled as GB.
 

hoplie

Member
Why don't they use slow DDR3 for OS functions? Why does the OS need GDDR6? Is it cause of the integration and unified memory thing and how difficult it is to program for 2 separate RAM pools?

Using the full 16 GB of GDDR6 for games can make monumental difference in graphics fidelity, and other things.
The OS doesn’t need GDDR6. But memory controllers do need quite a space in the chip (it doesn‘t scale down good). As you would additionally need a DDR3 controller, the chip would be bigger and more expensive. In the end it is cheaper to pay more for the GDDR6 and having just one memory controller.
 
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