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chakkra on 11 September 2020
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drkohler said:
chakkra said:

I'm no expert by any means but I think that if you are rendering a game at 1/4 the resolution (including textures) then you'll need just about 1/4 the memory bandwidth, and the Series S has almost half the bandwidth and more than half the amount of memory of the Series X. Besides, everybody here seems to have suddenly forgotten the role of the SSD when it comes to offloading work from the RAM (which I find surprising seeing how many threads about SSDs we had a couple of months ago).

That is a very dangerous thing to postulate. (The bandwidth in the Series S is perfectly ok, though). I've seen several posts that go the way of "If you only have 1/4th the resolution, you only need 1/4th of the ram". Apart from being wrong, the memory capacity in the Series S is the main concern voiced by developers all around the world, and for a good reason.

Ram isn't easily scalable. You can decrease texture size and geometry data for sure. That is half? a third? of the memory

The ssd doesn't really help either. Ssds are good for streaming, but there still is boatloads of data you need in memory, all the time. Raytracing is the buzzword now. Want rt? You need the data structures in ram. Want better shadows? You need much bigger cache in ram. Want better lighting? You need bigger data structures in ram. Want better AI? Need bigger game code and data in ram. Want other stuff I forgot to mention? You need all the data structures in ram.

Let's make it very clear: If you have to support Series S, the other consoles WILL pay the price for it.

"The PS5 features an incredibly fast SSD with 5.5GB/s read bandwidth. This is faster than anything that is available out there. How can developers can take advantage of this and what will it result to, and how does this compare to Series X’s 2.4GB/s SSD read bandwidth?

For a system to take the full advantage of the next gen CPU/GPUs the amount of data needed to be streamed in and out of memory is pretty big. That’s the main reason why both console manufacturers went with the SSDs and a specialized I/O approach. This approach was pretty much a necessity. You could for example get similar results with average SSD speeds and more memory. You would have to preload more game data into memory, but on the other hand your SSD wouldn’t need to fetch that much data every second."

https://gamingbolt.com/scorn-interview-storytelling-inspirations-structure-and-more

And btw, are you implying that the PS5 was always going to hold back the XSX? You know, since it has slower memory, slower GPU, and slower CPU? Because I really don't think it would have.

Last edited by chakkra - on 11 September 2020