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[PS4Daily RUMOR] ps4 developers will have access to 7GB of GDDR5 heaven

Saberus

Member
I bet the killzone ran on a 4 gig system, I was just reading my new Edge mag and Guerrilla said they got the new dev kit one week before the Feb event, so I'm assuming it would of been the 4 gig? Of course I could be wrong as they didn't talk about ram size in the article.
 

nasos_333

Member
I bet the killzone ran on a 4 gig system, I was just reading my new Edge mag and Guerrilla said the got the new dev kit one week before the Feb event, so I'm assuming it would of been the 4 gig? Of course I could be wrong as they didn't talk about ram size in the article.

Even if they had the kit, it is not easy to code optimize to actually use the whole space for a game

PS4 will be underutilized for a long time before developers know how to best use the 7GB fast unified VRAM, since it is completly different than PC and PS3 (closer to xbox 360 RAM architecture)
 

kirby_fox

Banned
I was expecting 3 GB myself- 1 for OS, 1 for background downloading and 1 saved solely for the sharing/recording. Giving devs 5 gig to work with- which really is still a step up.

With all the talk about the system being fast and at your finger tips, if 1 GB is all Sony has to play with I'd be a bit worried it's not going to work as good as the talk has been. Which I still expected.

I'm just curious how devs are going to use 7 GB in a proper manner.
 

vpance

Member
True and I feel most devs will go this route as well. PC/PS4 focus and Durango port alongside if the rumored specs don't change. I hope MS at least bumps the CPU/GPU clocks or add RAM for a better lowest common denominator.

IMO devs should just target both a lower screen and texture res for Durango ports. That might take it most of the way to run well enough without much else being sacrificed.
 

Chamber

love on your sleeve
I was expecting 3 GB myself- 1 for OS, 1 for background downloading and 1 saved solely for the sharing/recording. Giving devs 5 gig to work with- which really is still a step up.

With all the talk about the system being fast and at your finger tips, if 1 GB is all Sony has to play with I'd be a bit worried it's not going to work as good as the talk has been. Which I still expected.

I'm just curious how devs are going to use 7 GB in a proper manner.

Wouldn't 1 GB for each of those 3 functions be a tad bit ridiculous?
 
I was expecting 3 GB myself- 1 for OS, 1 for background downloading and 1 saved solely for the sharing/recording. Giving devs 5 gig to work with- which really is still a step up.

With all the talk about the system being fast and at your finger tips, if 1 GB is all Sony has to play with I'd be a bit worried it's not going to work as good as the talk has been. Which I still expected.

I'm just curious how devs are going to use 7 GB in a proper manner.

They've never delt with this much before, and we haven't seen any games, even next gen demos, use this much before. Sony 1st party is going to be nuts.
 

Dawg

Member
I can't even begin to imagine how things will look on PS4.

Uncharted 3, Killzone 3, The Last Of Us... all of those are made on 256MB RAM. It's incredible. It's even more incredible if you begin to think what kinds of things we'll see on the PS4. And that's only counting the GDDR5.

I am so ready for next gen.
 

lemonade

Member
remember sony stated that games could be played as they were downloaded... could that be the reason (and other) so much memory is needed for os?
 

Kaako

Felium Defensor
IMO devs should just target both a lower screen and texture res for Durango ports. That might take it most of the way to run well enough without much else being sacrificed.
Agreed. I just don't want my glorious PC versions being held back that much by the console ports. ;]

They've never delt with this much before, and we haven't seen any games, even next gen demos, use this much before. Sony 1st party is going to be nuts.
Thinking about what ND, Polyphony & SSM will bring in terms of image IQ brings a single tear of happiness to my left eye.
 

onQ123

Member
I can't even begin to imagine how things will look on PS4.

Uncharted 3, Killzone 3, The Last Of Us... all of those are made on 256MB RAM. It's incredible. It's even more incredible if you begin to think what kinds of things we'll see on the PS4. And that's only counting the GDDR5.

I am so ready for next gen.

512MB
 
Even if they had the kit, it is not easy to code optimize to actually use the whole space for a game

PS4 will be underutilized for a long time before developers know how to best use the 7GB fast unified VRAM, since it is completly different than PC and PS3 (closer to xbox 360 RAM architecture)

Not to mention Cerny said in an interview that a lot of of the unique customization's done to the hardware, such as the cache bypassing system(i dont know if im describing it correctly, but it sounded like a huge customization that would result in a lot less wasted cycles), wont be used by devs at first but more so down the line.

If someone could find this exact quote im referring to that would be nice.
 
remember sony stated that games could be played as they were downloaded... could that be the reason (and other) so much memory is needed for os?

No. Progressive downloads are mostly a function of the order in which the data is delivered. Ram isn't a concern. The complexity is entirely in how to package assets and that is solved once by the devs.
 
I'm not i-Lo and I don't remember if I've posted my speculation about Durango's final specs before but I may as well take a wild guess. I expect the CPU to be more than 1.6GHz and the GPU to wind up somewhere around 1.5tflops. Clock speed increases are probably all they can do and make it out on time but the gap between rumored Durango specs and PS4 specs is pretty huge when you take into account the deeper feature sets of the GPUs and all of the major efficiency improvement on PS4. OS will likely be a 2gb reserve with 1 core dedicated to it from the CPU.

yeah i agree with you
 

Respawn

Banned
So the desire for it to be 512MB goes unrequited.

Oh well, let's hope that the devs don't run into bottlenecks at launch because of it. Still, I guess it's better than 2GB being reserved.
Lol your on a roll good buddy. Had me worried with your kinect post but I get it ;)
 
Agreed. I just don't want my glorious PC versions being held back that much by the console ports. ;]


Thinking about what ND, Polyphony & SSM will bring in terms of image IQ brings a single tear of happiness to my left eye.

And me, a tear to my right eye. Together we make a weeping gamer of joy.
 

kitch9

Banned
If the rumours are true (about the OS footprint) then next gen games will, in all likelihood, would be designed with 5GB DDR3 in mind and then be ported over to other systems. With lowest common denominator dictating the final look, I doubt XB3 owners will be at a disadvantage.

Dude, please stop, I'm losing braincells reading your shit.
 

kitch9

Banned
Especially with superfect enabled. Windows can easily be reduced in the memory footprint and if MS bothered to make the kernel more efficient like they obviously did for xbox games would be a lot better.

You are not one of those who switches Superfetch off thinking it makes stuff better are you?
 

spwolf

Member
The WiiU has dedicated 1GB ram to the OS too.

So clearly depending on how their software engineers approach it.

crapload was referring to 7 GB for gaming... As to Wii U, I dont see how it applies? You have Vita to look at for example of next-gen Sony OS.
 

Man

Member
So 7 GB for games = 7 GB of Vram? Am I reading this right?
The PS4 uses unified ram. There's no separate main ram or video ram pool. There's only this single gigantic pool of super fast ram that you can use for whatever you feel like. 1GB of those 8GB is 'locked' away for OS purposes leaving 7GB for developers which is an ocean of memory.
 

keuja

Member
The PS4 uses unified ram. There's no separate main ram or video ram pool. There's only this single gigantic pool of super fast ram that you can use for whatever you feel like. 1GB of those 8GB is 'locked' away for OS purposes leaving 7GB for developers which is an ocean of memory.

In a normal PC architecture, when you play a game, what type of assets are loaded in the main RAM? Is it sound, game engine, cinematics, etc?
To have all this stuff loaded in an ultra fast memory that was previously reserved for video cards only is pretty mind blowing actually.
I'm really looking forward to see how far they can push the PS4.
 
Most modern PC games use about 4GB of Ram at most and thats at Ultra and with the other stuff depending on CPU/GPU.

Maybe a few games that use more than 4 but I doubt it. The PS4 using 7GB of GDDR5 is mindblowing. PC games should benefit heavily from this and depending if the next Xbox's OS uses more RAM, it will give the PS4 the edge in computation and loading along with a lot of other neat tricks the devs have for the PS4.

God 6-8 months is a long time away.
 

c0de

Member
512mb for the os.
512mb for a working clock.

xclock.png
 

Hydrargyrus

Member
Could that RAM amount reserved for the OS be reduced with the time?, as well it was reduced in the PS3 where initially used more and was, periodically, diminisehd with firmware updates.
 

enzo_gt

tagged by Blackace
3GB for OS doesn't sound like much if you factor in Durango's multitasking and ability to run multiple games at once. Whatever games are in reserve probably fit into that 3GB. And if we're talking multiple games/HD streams that adds up.
 

LCGeek

formerly sane
You are not one of those who switches Superfetch off thinking it makes stuff better are you?

Since disabling that and other useless services my latency in DPC latency checker is a below 50 unless I purposely run stress tests. The only time superfetch really helps is if you have a slow drive or happen to be a ram hungry user switching between tons of crap.

I didn't do it for load I did it to drop systematic overhead which even ms admits it does.

Here's the link and here is' the main quote.

"SuperFetch and prefetch are storage management technologies in Windows that provide a fast-track access to data on traditional, slower hard drives. On SSD drives these really clever services only provide for unnecessary write operations."

If it's unnecessary which in my case it is why leave it enabled it as useless as the windows media share service.
 

stryke

Member
Could that RAM amount reserved for the OS be reduced with the time?, as well it was reduced in the PS3 where initially used more and was, periodically, diminisehd with firmware updates.

Maybe, but there's probably not much point. 7GB just for gaming is plenty for the next generation.
 

c0de

Member
I think 1 Gig for OS is quite a lot. Question is whether they "allow" some sort of apps users can install and can run in parallel. Are 3rd-party apps allowed? Do they have ram-usage-restrictions? Is there some sort of virtual machine watching ram-usage? What about an app with memory leaks? The OS will become a major part of Durango/PS4, I fear. And just using BSD doesn't mean all the "magic" gets done automatically.
 
In a normal PC architecture, when you play a game, what type of assets are loaded in the main RAM?
AFAIK Only data that's directly related to graphics processing is stored in VRAM, like textures and frame buffers. Everything else (sound, animations, etc.) is stored in RAM.
 

Ce-Lin

Member
so... having 7 GB available for games doesn't mean you automatically get better performance if you developed with 3.5 GB in mind, if the new Killzone game only needs 2-3 GB of video RAM and 0.5 GB for the main executable + helpers then there's nothing to gain for the extra RAM except faster loading times and maybe some better AA technique, in case they want to use the extra RAM which they didn't take into account while developing they should rework textures and effects for higher quality and up IQ to fill that "empty" RAM. Also worth noting that most graphics effects running on compute units tend to use a lot of RAM, in case they have those in the game then they can up their quality at no performance cost, for instance Tress FX uses around 0.4 - 0.5 GB VRAM just for Lara's hair.

correct me if I'm wrong though !
 

i-Lo

Member
Dude, please stop, I'm losing braincells reading your shit.

You need to have them to lose some :p

Plus what is so improbable in that statement given xb3 is DX11 compliant & possesses far better specs than WiiU? Plus, at this point 3GB for OS is still a rumour (much like the alleged 1GB for PS4).
 

Durante

Member
If it didn't come from Durante, I'd call it a bit of a hogwash. Because it isn't I'd guess instead of higher resolution textures, perhaps better texture streaming and (just maybe) slightly better load times can be expected.
You don't have to take my word for it, you can read this fantastic thread on Beyond3D instead!
Everyone who wants to understand the significance of memory amounts and bandwidth in consoles should.
 

RoboPlato

I'd be in the dick
You don't have to take my word for it, you can read this fantastic thread on Beyond3D instead!
Everyone who wants to understand the significance of memory amounts and bandwidth in consoles should.
Awesome. I've got some reading to do. I understand to a point but would love to get more educated on what exactly it entails. Stuff like that link are why I'm in tech threads a lot, I'm not all knowledgeable but I love learning about it.
 
3GB for OS doesn't sound like much if you factor in Durango's multitasking and ability to run multiple games at once. Whatever games are in reserve probably fit into that 3GB. And if we're talking multiple games/HD streams that adds up.

A random laptop/PC doesn't need 3gb reserved for OS and we are talking about a dozen different scenarios in terms of CPU/RAM/HDD that need to be calculated, why should a closed system require 3GB?
 
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