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Hardware AMD Oberon PlayStation 5 SoC Die Delidded and Pictured

3liteDragon

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Mar 3, 2020
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Fresh PS5 SoC die shots arrive.

(Image credit: Fritzchens Fritz)
Fritzchens Fritz, a hardware enthusiast that takes high-resolution die shots of various processors, has posted his work on PlayStation 5 System-on-Chip (SoC) die shots, exposing the processor's internals and revealing the layout of billions of transistors.

The AMD SoC, codenamed AMD Oberon, features AMD's exclusive design IPs like Zen 2 and RDNA 2. At the heart of the system, eight Zen 2 CPU cores with hyper-threading enabled run at 3.5GHz. In addition, the SoC pairs the CPU cores with as many as 36 compute units (CUs) from the RDNA 2 generation, running at up to 2.23GHz. The high GPU frequencies allow the console to achieve 10.3 TFLOPs of computational power.


(Image credit: Fritzchens Fritz)
The die shots, which you can see in the gallery above, show how AMD laid out the billions of transistors across the entire chip. The GPU cores sit in the middle, split inside multiple CUs to form an integrated graphics engine. Beside them reside the aforementioned Zen 2 cores, followed by the silicon dedicated to I/O. There is a clear indication of AMD's Infinity Fabric, which connects the entire chip, and L2 cache. The GDDR6X memory controller and PHY (physical layer) interface can be seen on the edge of the SoC, which is where the data enters and exits the processor. Looking closely, you can see the L3 cache there as well. You can also see the remaining images in the Fritzchens Fritz Flickr folder.

If you recall, this exact chip is the heart of the AMD 4700S desktop kit. However, it is slightly different due to the disabled graphics. Presumably, all of the chips that didn't reach full functionality have been repurposed for this desktop kit, meaning that the manufacturing process was the most difficult for the RDNA 2 graphics.
 
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McCheese

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Always amazes me how small all of that stuff is. Wish I knew how these chips even worked.

Have a play with Visual6502

But even when you know how these things work, it still seems like alien technology. Just the GPU on that chip has 18 billion transistors and miles of wire, and you can just about make that out in the picture. We have technology which creates tools which develops another technology which creates tools to enable us to make another technology and so forth, it's surprisingly fragile and we take a lot of it for granted, once we stopped manufacturing CRT displays we forgot how to make them within 10-20 years, we would have to pretty much reverse engineer one and go back to the manufacturing drawing board to make another one. If for whatever reason all technology for CPU's vanished and we only had our knowledge, it would still take us decades to get back to where we are.
 
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Cherrypepsi

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it amazes me how factories can produce these things in such huge quantities

what's the top and bottom landing strip thing?
 

ethomaz

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The article says PS5’s GPU has L3 cache…. Is that really true?
 

ethomaz

is mad because DF didn't do a video on a video of a video of a video on PS5
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This one is beyond me so I live it to the experts. But very interesting. Lol
The position is indeed right and match what AMD done with desktop RDNA2 in a minor size.
I thought it was just silicon non-used area but if it is really a non-used área it is a big waste of silicon.

When he first released a lower quality pics some pointed to that place being L3 but it was never confirmed.
It is the first time a big site claimed it is indeed L3.
 
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Tripolygon

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The position is indeed right and match what AMD done with desktop RDNA2 in a minor size.
I thought it was just silicon non-used area but if it is really a non-used área it is a big waste of silicon.

When he first released a lower quality pics some pointed to that place being L3 but it was never confirmed.
It is the first time a big site claimed it is indeed L3.
Interesting indeed. Makes you wonder what more secretes the SoC hides that has not been discussed publicly.
 

ethomaz

is mad because DF didn't do a video on a video of a video of a video on PS5
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This again? There's no L3 cache "Infinity Cache" on the GPU. Author is just dumb.
It is not the author alone it is the guy that took the X-ray pics… he managed to increase the quality of the shots to see better these parts.
 
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Tripolygon

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Só for you the pics are made up? There is silicon near the GDDR6 controller?
Please don't engage. I don't want this thread to be derailed
Hmm? That was never in doubt, the only doubt was whether it had a unified L3 cache shared among both CCDs.
There was no indication that the RDNA 2 consoles use to have "infinity cache" aka L3. This shows that PS5 at least may have some variant of it. Can't say for certain, just going with what they say in the article.
 
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Xyphie

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and you can stop with the unnecessary console war

this has nothing to do with it

I'm shutting down console war nonsense. PS5 fanboys are doing the exact some nonsense Xbox fanboys did when it turned out the Xbox One was a less powerful system than the PS4 last time around. There's no secret sauces yet to be found, we have known the full specs of both systems for months/years at this point.
 
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Tripolygon

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I'm shutting down console war nonsense. PS5 fanboys are doing the exact some nonsense Xbox fanboys did when it turned out the Xbox One was a less powerful system than the PS4 last time around. There's no secret sauces yet to be found, we have known the full specs of both systems for months/years at this point.
Jfc you plunker, nobody here said the PS5 was more powerful than XSX. It is all in your head.
 

Bojanglez

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I'm shutting down console war nonsense. PS5 fanboys are doing the exact some nonsense Xbox fanboys did when it turned out the Xbox One was a less powerful system than the PS4 last time around. There's no secret sauces yet to be found, we have known the full specs of both systems for months/years at this point.
There is a difference in that there are quite a few examples of the PS5 outperforming the XSX at least in terms of framerate. But I know many will just say that is because of MS lacklustre tools.
 

Cherrypepsi

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I'm shutting down console war nonsense. PS5 fanboys are doing the exact some nonsense Xbox fanboys did when it turned out the Xbox One was a less powerful system than the PS4 last time around. There's no secret sauces yet to be found, we have known the full specs of both systems for months/years at this point.
we all know it's more powerful
does that mean we can't discuss these photos?
look what people posted here and look what you made up from it. seek help.
 
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