What's AMD (Graphics) up to?

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powerarmour
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Re: What's AMD (Graphics) up to?

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How the ACO Mesa Vulkan Shader Compiler For AMD GPUs Came To Be: From Prototype To Default:
The ACO (AMD Compiler) Vulkan shader compiler has been in development for quite some time. It was merged into Mesa 19.3 and it has been possible to use it by setting the environment variable

Code: Select all

export RADV_PERFTEST=aco
in Mesa 19.3 and newer. Setting that environment variable will no longer be necessary when Mesa 20.2 is released later this month (or early next month if it is delayed): ACO is now considered to be mature enough to be the default Vulkan Mesa RADV GPU shader compiler.

A lot of work has gone into making ACO as efficient and stable as it is today. You can learn a lot about how ACO works and the efforts behind it by watching this 40 minute long talk by developer Timor Kristóf at this year's X.Org Developers Conference 2020:
https://linuxreviews.org/How_the_ACO_Me ... To_Default

As posted earlier, RADV w/ACO is now in great shape for AMD GPU hardware:
viewtopic.php?f=6&p=707351#p707351
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Re: What's AMD (Graphics) up to?

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Greetings!
AMD Navi 21 “Big Navi GPU” For Radeon RX 6900 XT Reportedly Features 16 GB VRAM, Radeon RX 6000 Cards With Navi 22 Get 12 GB VRAM

https://wccftech.com/amd-radeon-rx-6000 ... -gpu-vram/
W10x64 - B450 - R5 3600 - 16GB - RX 5700 - 1TB - 4TB - 24" 16:10 - 650W

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Re: What's AMD (Graphics) up to?

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AMD Navy Flounder to feature 40 CUs and 192-bit memory bus:
The Navi Flounder is believed to offer 40 Compute Units, just as many as Navi 10, but the memory bus width is rumored to be limited to 192-bit. This is not confirmed, of course, but it is a result of the simple multiplication of three variables present in the firmware data. Assuming that each Compute Unit carries exactly 64 Stream Processors, the Navy Flounder would feature 2560 unified cores.
https://videocardz.com/newz/amd-navy-fl ... memory-bus

Doesn't sound too exciting, but it's all about how it performs and the price. If this is the Navi 23 'littlest' card, then it should still at least match the 5700/XT.

Seems to agree with all the recent rumours though, 256bit GDDR6 for the top card, and 192bit for the mid card/s, with the bandwidth aided somewhat by a big chunk of on-die cache/EDRAM.
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Re: What's AMD (Graphics) up to?

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powerarmour wrote: Tue Sep 22, 2020 2:03 pm Seems to agree with all the recent rumours though, 256bit GDDR6 for the top card, and 192bit for the mid card/s, with the bandwidth aided somewhat by a big chunk of on-die cache/EDRAM.
Or maybe not, could still be HBM2/2E:
If it's HBM2E, AMD's top card could have 2TB/s bandwidth, and that could really throw the cat in amongst the pigeons.
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Re: What's AMD (Graphics) up to?

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powerarmour wrote: Thu Sep 24, 2020 12:53 pm
powerarmour wrote: Tue Sep 22, 2020 2:03 pm Seems to agree with all the recent rumours though, 256bit GDDR6 for the top card, and 192bit for the mid card/s, with the bandwidth aided somewhat by a big chunk of on-die cache/EDRAM.
Or maybe not, could still be HBM2/2E:
If it's HBM2E, AMD's top card could have 2TB/s bandwidth, and that could really throw the cat in amongst the pigeons.
They must have a card like that or won't get near the performance crown. I'm sure they can find a sweet spot for Big Navi, HBM2, 999 dollars and give the 3090 a worthy contender.
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Re: What's AMD (Graphics) up to?

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I still think they need a DLSS equivalent to truly compete going forward, because I think Nvidia have a 3070 Super/Ti ready to roll too which loads of folks will buy even if it's slower in traditional rasterization.
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Re: What's AMD (Graphics) up to?

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powerarmour wrote: Thu Sep 24, 2020 7:51 pm I still think they need a DLSS equivalent to truly compete going forward, because I think Nvidia have a 3070 Super/Ti ready to roll too which loads of folks will buy even if it's slower in traditional rasterization.
Unless AMD has some serious trick up its sleeve it's in serious trouble. nVidia unleashed a series with both performance and value, and seems able to improve on both counts of need be.
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Re: What's AMD (Graphics) up to?

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Newegg Insider lists AMD Radeon RX 6000 series specifications:

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https://videocardz.com/newz/newegg-insi ... ifications
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Re: What's AMD (Graphics) up to?

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powerarmour wrote: Sun Sep 27, 2020 12:13 pm Newegg Insider lists AMD Radeon RX 6000 series specifications:

Image

https://videocardz.com/newz/newegg-insi ... ifications
With this specs The 6900XT will be lucky to tie with the RTX 3080. And might be more expensive due to the higher RAM amount.

nVidia seems to have designed it's cards to undermine AMDs offerings, if you balance price, performance and RAM.
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Re: What's AMD (Graphics) up to?

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Tabajara wrote: Sun Sep 27, 2020 9:01 pm With this specs The 6900XT will be lucky to tie with the RTX 3080. And might be more expensive due to the higher RAM amount.

nVidia seems to have designed it's cards to undermine AMDs offerings, if you balance price, performance and RAM.
I don't claim to know what unreleased stuff will cost, but they should be similar given the reasonable limits of current tech. Sure, they each go about things different ways but no matter what else is up the cost of all the components is similar.
Soon to be primarily a console gamer.
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