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AlexOak

AMD RDNA Doc release

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Posted · Original PosterOP

So AMD has released a document on their RDNA architecture and so far they talk about the encoder as well.

 
 
 
 
Quote

Graphics processors (GPUs) built on the RDNA architecture will span from power-efficient notebooks and smartphones to some of the world’s largest supercomputers. To accommodate so many different scenarios, the overall system architecture is designed for extreme scalability while boosting performance over the previous generations. Figure 4 below illustrates the 7nm Radeon RX 5700 XT, which is one of the first incarnations of the RDNA architecture. -pg 6

Quote

In many cases, video encoding and decoding can be performed in software on the RDNA dual compute units for the highest quality. However, the dedicated hardware will always yield the best throughput and power efficiency while also freeing up dual compute units for other tasks. The video engine has been enhanced with support for VP9 decoding, whereas prior generations relied on software implementations.

 

The video engine can decode H.264 streams at high-throughput: 1080p at 600 frames/sec (fps) and 4K at 150 fps. It can simultaneously encode at about half the speed: 1080p at 360 fps and 4K at 90 fps. 8K decode is available at 24 fps for both HVEC and VP9. For more advanced compression, the video engine delivers high throughput decoding for either 8-bit or 10-bit color: 360 fps for a 1080p stream, 90 fps for a 4K stream, and 24 fps for an 8K stream. The encoder is designed for HVEC, while the decoder can also handle VP9.

-Pg 19

Opinion:

So If they fix the encoder problem then this might make it a good card? You should read the doc since it covers way more on this new architecture 

 

https://www.amd.com/system/files/documents/rdna-whitepaper.pdf

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I may be thinking about it wrong but i think this will bite them back sometime

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The memory controllers and interfaces for the RDNA architecture are designed to take advantage of GDDR6, the fastest mainstream graphics memory. Each memory controller drives two 32-bit GDDR6 DRAMs with a 16 Gbit/s interface, doubling the available bandwidth of previous generation GDDR5 within roughly the same power budget.

 


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Your welcome

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8 minutes ago, SlimyPython said:

I may be thinking about it wrong but i think this will bite them back sometime

 

Why would that bite them?


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6 minutes ago, dalekphalm said:

Why would that bite them?

for when GDDR7 comes around


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Your welcome

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4 minutes ago, SlimyPython said:

for when GDDR7 comes around

When is GDDR7 being released?

 

I imagine by the time it becomes available for mass production at reasonable costs, they will be able to upgrade the architecture for the new memory spec. 

 

I wouldn't overthink that one quote. 


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2 hours ago, dalekphalm said:

When is GDDR7 being released?

 

I imagine by the time it becomes available for mass production at reasonable costs, they will be able to upgrade the architecture for the new memory spec. 

 

I wouldn't overthink that one quote. 

AMD has also already confirmed that RDNA can be adapted for either GDDR6 or HBM...

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Read it last night, over 2x Triangle Culling Rates over Vega 64 which makes it perform better in games with high geometry counts that usually old GCN achilles heel imo.


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4 hours ago, SlimyPython said:

I may be thinking about it wrong but i think this will bite them back sometime

 

You do realize everything can evolve with time? Currently GDDR6 is a thing. It hasn't been out for 1 year even...

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Ditching my Vega 64 for a 5700XT on Wednesday, my Vega is suffering from serious overheating and the SoC can easily reach over 100°c while gaming. Gonna pick up either the Sapphire Pulse or Power Color Red Devil (which is currently out of stock) and put the Vega on eBay.

 

I know it's almost a sidegrade, I've done my research but tbh I've lost faith in the Vega now and once I've replaced it I see no need to upgrade anything else in my PC for a few years.

 

I run a high refresh 1440p freesync monitor so the 5700XT is perfect.


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Quite cool, I wonder how much the 2020 Navi will be improved, not just performance but like architectural and RT additions. 

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4 hours ago, Master Disaster said:

Ditching my Vega 64 for a 5700XT on Wednesday, my Vega is suffering from serious overheating and the SoC can easily reach over 100°c while gaming. Gonna pick up either the Sapphire Pulse or Power Color Red Devil (which is currently out of stock) and put the Vega on eBay.

 

I know it's almost a sidegrade, I've done my research but tbh I've lost faith in the Vega now and once I've replaced it I see no need to upgrade anything else in my PC for a few years.

 

I run a high refresh 1440p freesync monitor so the 5700XT is perfect.

Sometimes you have to go this way. I remember when I bought Sapphire HD6870 Toxic and it was obnoxiously loud. So I ended up returning it and buying Sapphire HD6950 (looked similar to Flex Edition, I think it said Silent Efficiency on it). They were about the same in performance (yeah that Toxic was insanely fast, but also insanely hot and loud), but the HD6950 was way quieter.

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9 hours ago, Humbug said:

AMD has also already confirmed that RDNA can be adapted for either GDDR6 or HBM...

Yeah and even if they didn’t say it before, I’d be shocked if they were limited to one type of memory controller. 


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21 hours ago, SlimyPython said:

for when GDDR7 comes around

  1. There's no point in designing a memory controller over a future spec that likely isn't finalized yet, if the process of getting it specified is even in progress
  2. The memory controller is an implementation detail, it's not integral to the design of the GPU architecture itself
  3. GPU implementations (i.e., video cards) likely straddle the point of "just enough" to minimize cost to build and performance gained. Yes there may be some room for improvement, but is that worth being on bleeding edge and likely inflating the video card's price even more?
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Exynos with radeon graphics would kick ass.


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40 minutes ago, williamcll said:

Exynos with radeon graphics would kick ass.

I was thinking the same thing too. But I still have my doubts.

Can this really scale down that well? It will be interesting to see, but I am worried that performance or power consumption won't be competitive with other offers from for example Qualcomm, Apple or ARM. Those GPUs were designed from the ground up to be in phones and tablets. They weren't designed to scale up to 20, or 200 watts of power consumption.

 

Also, Samsung need to fine-tune their core design a bit more for it to be truly top-tier.

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19 hours ago, LAwLz said:

I was thinking the same thing too. But I still have my doubts.

Can this really scale down that well? It will be interesting to see, but I am worried that performance or power consumption won't be competitive with other offers from for example Qualcomm, Apple or ARM. Those GPUs were designed from the ground up to be in phones and tablets. They weren't designed to scale up to 20, or 200 watts of power consumption.

 

Also, Samsung need to fine-tune their core design a bit more for it to be truly top-tier.

 

Well the fact that Apple managed to double the performance of their integrated graphics & video encoding from the A10X in 2017 to the A12X in 2018 means Samsung has to up their graphics game via partnering with AMD if they want to stay on-par with Apple in SoC performance ~ especially if folding Android phones are poised to go head-to-head against iPads.

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