The Game Pass effect: Forza Motorsport has three legacy features that won't be ready for launch

24 Jun 2022
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I have a friend at the time was working at SCE. He basically explains PS3 memory is basically kernel level, XDR was level 0, and RSX was level 1. So mipmap, level data reach XDR first and then fed to RSX where it process to GPU, only the Cell CPU can reach RSX data.

So basically it split, later they make so GPU can also access XDR memory and later on remove the hierarchy thing. They did this because later on games video memory ballooned.

Yeah, I've read about what you describe. Virtually all of my understanding on PS3's architecture comes from this site; it's been invaluable in helping me understand many of these older consoles design-wise.

Mentioned there, and mirroring what you just said, early on the system hard-partitioned access based on hierarchies, which IIRC was also a security measure. It was one of the reasons I think Linux/Other OS on PS3 was limited to just the Cell and couldn't leverage the RSX (or its GDDR3 memory). But then later on Sony made changes and access parameters were loosened up for the RSX to access some data in XDR memory space.
 

historia

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29 Jun 2023
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Yeah, I've read about what you describe. Virtually all of my understanding on PS3's architecture comes from this site; it's been invaluable in helping me understand many of these older consoles design-wise.

Mentioned there, and mirroring what you just said, early on the system hard-partitioned access based on hierarchies, which IIRC was also a security measure. It was one of the reasons I think Linux/Other OS on PS3 was limited to just the Cell and couldn't leverage the RSX (or its GDDR3 memory). But then later on Sony made changes and access parameters were loosened up for the RSX to access some data in XDR memory space.
That is why PS3 was so secured back in early day I think, probably it not just Nvidia design, it also Kuteragi design, probably his multimedia push, probably because he got tired of PSP and PS2 piracy. There is not way to send payload to BSD part of PS3 because the memory read-only.
 

Shmunter

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22 Jul 2022
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Series S is THE Xbox console this Gen. Where do you go from here next Gen when your audience is at $299?
 
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Loy310

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14 Aug 2022
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That's unfair to the PS3. That system actually had a bold vision and it was right about where the industry was going tech-wise in the end. It was just too ambitious for its own good.

There is nothing ambitious or forward-thinking about Series S outside of trying to make the cheapest "next-gen" console possible from Day 1, and now look at the results that has produced. It is much closer to being a Sega Saturn than being a PlayStation 3 (and even then, with less exclusives and noteworthy 1P releases in a similar timeframe to the Saturn).
PS3 is pretty powerful at the time, NVIDIA GPU on par with ATI GPU on 360, except the memory split by Nvidia which got sorted out later on.

This potato lacks memory, patheticly weak
though
Please do not insult the brilliant exotic architecture hardware that was the PS3
In terms of ease to develop on is what im referring to. PS3 was designed in a vacuum, not many devs had input on its architecture unlike PS4 and PS5, Ken and team just locked themself in a room and made it, end result was devs struggled to harness its power and features.
Cerny getting devs involved from the jump is a big part as to why the PS4 and PS5 is so easy to develop for.

So the SS and SX is in the same boat the PS3 was in when it comes time to sit down and make games on, its a struggle for creators.
 
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