AMD just announce officially a new GPU lineup  RX 5000,  which is we already know under the code name NAVI.  Navi will powering their future gaming GPU for consoles , PC and Server PC cloud gaming and probably a handled.

What make this news interesting is how AMD announce new architecture completely different from their previous GPU line up since 2012 until 2017 GPU. Navi will be powered by new arch , "RNDA " which will replace GCN.

It will have 25 % more performance per clock per core over last  " Vega " GCN , and at the same time 50% more power efficient as well. Navi also will support PCIe 4 for PC , multilevel cache hierarchy for better bandwidth.

But it still unclear how much a different compared to GCN, will still a big overhaul change or will still have a little bit similarities? What we got so far is , one CU of RNDA will still have 64 stream processor. 

https://www.anandtech.com/show/14412/amd-teases-first-navi-gpu-products-rx-5700-series-in-july-25-improved-perf

Why i am bringing this , because we know Sony next gen consoles (presumably it will be called PS5) will be using Navi. This at least will give a slight clue on how  powerful PS5 is or how accurate the previous PS5 spec leak is. How this will impact on generation gap, how it will define generation on graphical level. Of course we still don't know which Navi series that will go inside PS5 or how much clock speed Sony are using it and what is the costume design (secret sauce)  they are preparing  for Playstation fan. But for sure Navi will be different from Vega and polaris and will be powerful beast. For Xbox Anaconda or Lockheart i don't have any official news that mention  Microsoft  using navi. 

So let the discussion, hype and imagination run wild. 

EDIT: New Update and detail from https://www.pcworld.com/article/3397797/amds-lisa-su-at-computex-on-the-record-threadripper-huawei-ray-tracing-and-more.html  Interview with Lisa Su about RX 5000 (Navi) with PC gamers.

" Reporter: With ray tracing apparently being a big part of future consoles, is it going to be part of [the new graphic architecture], RDNA?

Su: So we have a lot more RDNA content that David and Scott will be presenting. I think some of you may be coming to our tech day, in a few weeks at E3. We’re going to talk about all of that. 

Scott  Herkelman, AMD Radeon general manager: We’ll give out a lot more detail on that, all the new features and technologies. 

Su: We only had an hour today.

Reporter: It seems like if ray tracing was a thing you were definitely working on, we’d have heard it on stage today?

Su: We’re definitely working on ray tracing. That’s true. But like I said, we’ll give you more of the roadmap at E3.

Reporter:  Given that Sony has already announced ray tracing as part of the PlayStation 5, can you tell us if that’s a Sony optimization, or part of RDNA?

Su: So we certainly have done very specific optimizations for Sony. They are a deep customer for us on semi-custom products. There are optimizations there. However, we view ray tracing as a very important element across the portfolio. So we’ll have ray tracing a number of other places... Look at that, you got me to say more about ray tracing! 

David Wang, senior vice president of engineering at AMD: We started our RDNA development before the Sony engagement. RDNA is a revolutionary architecture; it’s also very flexible. So it can be optimized [inaudible].

Reporter: So it’s like an FPGA.

Su: I wouldn’t exactly say that.

Reporter: Followup question: Sony, Microsoft, and Google’s Stadia have announced cloud gaming initiatives. Since AMD powers all the “on-premise” game consoles, how do you see cloud gaming stacking up against local consoles?

Su: Well, look, I think we believe gaming will be all form factors. So whether it’s PCs, or consoles, or cloud, all of them require great graphics capability. As well as a number of other things. We’re very proud to be partnering with Google on their Stadia cloud streaming platform; there are a number of other cloud efforts that we are very involved in. And, you know, from my standpoint, I think they’re all going to coexist. So it’s not like one is going to take over. Their business models, all that stuff. But I think cloud gaming is going to be important. And you know, we’re going to continue to invest in that from a technology standpoint.

Reporter: Is that an Epyc play?

Su: It’s Epyc and Radeon. 

Reporter: I do feel like a lot of what we saw in the PlayStation 5 hinted at a lot of things you guys were working on. A big thing for them was no loading of levels. Was there anything in particular that could allow you to bring that to the PC market? PCI Express 4?

Su: PCIe 4 definitely helps. Things that Sony are doing, they’ve been very specific on their proprietary technologies."

Conclusion:

1.RDNA is a revolutionary architecture (implying it's a new and very different design from GCN) 

2.They have two different type SKU's for RX 5000 line up. 

3.Ray Tracing will be supported on different type SKU's. 

4.Sony probably going to use RX 5000 with Ray tracing capability build in.

5.More detail about Ray Tracing on RX 5000 and their variant and future road map also RDNA detail will be explained on E3 2019.

6.Sony is their big costumer and a deep costumer (very close in involving and developing technology) on semi custom chip.

7.This add another confirmation that RX500 that go inside PS5, will have a semi costume design build and optimize for  PS5 design principality , and will be have slightly different design by adding more feature and loose some unnecessary feature inside the chip. 

8.RDNA  design started before SONY join the project and before SONY decide to use RX 5000 (this clear the false statement that Navi was build purposely for  SONY).

9.PCIe 4.0 is one of the factor that help the design of PS5 fast loading/no loading game data capability.

Last edited by HollyGamer - on 28 May 2019