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HoloDust on 16 February 2019
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Nate4Drake said:
Pemalite said:

Why can't Microsoft leverage Navi as well?

I think a good ballpark is 3-4GB for the OS next gen, there really isn't an appropriate reason why that should blow out... Except for a push for 4k, but I think better memory caching is the answer for that.

Precisely. As time goes on... 24GB seems to be the upper limit that I am willing to bet on.
It would mean a 384-bit memory bus though, so probably not the ideal configuration for a base-console that is supposed to hit $200 price points late in it's life.

24GB on a 384bit memory with 16Gbps chips is probably around the 768GB/s of bandwidth mark.
16GB on a 256bit bus will hit the 512GB/s mark... Which isn't actually a bad amount for 4k gaming.

But I wouldn't be surprised if it's lower than even that... Not even RTX is using 16Gbps chips yet AFAIK... No way is 880GB/s happening with GDDR6 right now though.

I think bandwidth will remain conservative... And a higher emphasis on GPU efficiency to extract more out of it... Ironically, Vega has a ton of features that aren't functional that would have helped on the bandwidth front too... So I expect them to be working with Navi and newer architectures.

Yep.  I was looking at some info about PRO more efficient GPU/architecture : ""The original PS4 didn’t exactly ship with a surfeit of bandwidth, at 186 GB/S, and the PS4 Pro only features a modest bump in bandwidth to 218 GB/S, which is pedestrian compared to cards like the 390X—at 384 GB/S—targeting higher resolutions.

What’s the solution here? As always, the Polaris answer is “more for less.” The next-generation delta colour compression tech onboard the PS4 Pro’s GPU is 30 percent more efficient colour compression on the 290X/390X. Colour compression reduces the size of the framebuffer, thereby reducing actual memory bandwidth needs. With 30 percent more efficient colour compression, the Pro’s GPU has an effective bandwidth of 283 GB/S as compared to the 390X. Because the Pro doesn’t offer that much bandwidth as is, color compression and reduced bandwidth requirements will enable it to hit playable framerates at higher resolutions—which is the whole point of the Pro in the first place.""

  Basicly it's not only a matter of raw power and numbers, but "balance and efficiency", and I'm confident Sony and AMD will pull out an amazing piece of hardware.  

 That said, I believe Sony will push a bit more the hardware boundaries this time around, and they won't play the really "cheapest and safest" way like they did with PS4. 

  I think most of us will be amazed by the PS5 capabilities.  

  

Well, they didn't really play cheapest and safest way with PS4 - only thing that was cheap was Jaguar, 8GB GDDR5 came as a surprise to many, even Mark Rein from Epic was surprised after reaveal (or acted quite surprised in one of aftershow interviews)...slightly cut down 7870/7970m class GPU was also better than what many expected, they could've gone with something similar to XONe's GPU and still have slightly better performing console due to GDDR5 and/or higher clock.