• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Question Speculation: RDNA3 + CDNA2 Architectures Thread

Page 8 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.
jrdls said:
Out of curiosity, why do you trust greymon55? His account has been created recently and doesn't have a track record with leaks that can be evaluated. I hope you don't mind me asking.
Click to expand...
He is probably one of those hydra leaker accounts, which the #silicongang is tracking
You take down one (which they did) , and another one will take its place.
 
DisEnchantment said:
He is probably one of those hydra leaker accounts, which the #silicongang is tracking
You take down one (which they did) , and another one will take its place.
Click to expand...
That seems rather unlikely.

When has twitter ever banned someone for leaking legal information?


the fortnight/bf6 guys were running giveaways, against the TOS.
Kottmann was banned for hacking into peoples systems and posting the results on twitter.

I have not seen twitter go after people for just sharing legal information.
 
Last edited:
By the way:

www.hpcwire.com

Pawsey Prepares for the Data Deluge from the Square Kilometre Array - HPCwire

As the largest-ever radio telescope, the Square Kilometre Array (SKA) will be a behemoth. As the name implies, the instruments of the massive radio telescope will span well over one square kilometer, using hundreds of dishes and hundreds of thousands of low-frequency aperture array telescopes...
www.hpcwire.com www.hpcwire.com

This should use the MI200 GPUs.
Pawsey-Setonix.png
 
Leeea said:
That seems rather unlikely.

When has twitter ever banned someone for leaking legal information?


the fortnight/bf6 guys were running giveaways, against the TOS.
Kottmann was banned for hacking into peoples systems and posting the results on twitter.

I have not seen twitter go after people for just sharing legal information.
Click to expand...
Twitter didn't. Other people from Chinese forums did because the person in question made some comments on Twitter that he shouldn't have, especially in regards to this guy's "source" of information.

Anyway, it's an old rumour that goes back a few months.
 
Two
Leeea said:
That seems rather unlikely.

When has twitter ever banned someone for leaking legal information?


the fortnight/bf6 guys were running giveaways, against the TOS.
Kottmann was banned for hacking into peoples systems and posting the results on twitter.

I have not seen twitter go after people for just sharing legal information.
Click to expand...

- Largest chips (250mm2 up) on 5nm, smaller chips stay on an enhanced, cheaper, high volume enhanced 7nm process.

Good way to get GPU volume out there without competing with the contracted parts and eating into their CPU production.
 
jrdls said:
Out of curiosity, why do you trust greymon55? His account has been created recently and doesn't have a track record with leaks that can be evaluated. I hope you don't mind me asking.
Click to expand...
Sorry, I forgot to reply to this one directly. It's someone that was on the Twitter space until recently before other Chinese forum dwellers got angry at him spreading info on Twitter. And yes he had legitimate information, courtesy of one guy on said Chinese forums who is without a doubt a legitimate leaker.
 
uzzi38 said:
Greymon55 on Twitter: "navi33 monolithic tsmc 6nm" / Twitter

Yeah, so remember before I suggested the idea of a split product lineup between 5nm and 6nm for RDNA3?

🙂
Click to expand...
I find this a bit hard to believe. The Navi3x GCD should be an SoC (unlike Ryzen CCDs) so it makes sense that Navi33 would be a single GCD by its own (with or without 3D IC if more B/W is needed). Also an 80 CU die on 6nm would be at a minimum 400mm², that's way too expensive for anything mid-range.
 
Kepler_L2 said:
I find this a bit hard to believe. The Navi3x GCD should be an SoC (unlike Ryzen CCDs) so it makes sense that Navi33 would be a single GCD by its own (with or without 3D IC if more B/W is needed). Also an 80 CU die on 6nm would be at a minimum 400mm², that's way too expensive for anything mid-range.
Click to expand...

You haven't accounted for the fact that cost per transistor is rising with newer nodes, not falling. Die size doesn't matter all that much if it'll end up being more costly on N5 than N6 anyway.
 
uzzi38 said:
You haven't accounted for the fact that cost per transistor is rising with newer nodes, not falling. Die size doesn't matter all that much if it'll end up being more costly on N5 than N6 anyway.
Click to expand...
That is offset by the fact you are essentially backporting the Navi3x 5nm GCD to 6nm. Unless the volume of Navi33 is absurdly high (an order of magnitude above any previous AMD GPU launch) there is no measurable cost savings.
 
Kepler_L2 said:
That is offset by the fact you are essentially backporting the Navi3x 5nm GCD to 6nm. Unless the volume of Navi33 is absurdly high (an order of magnitude above any previous AMD GPU launch) there is no measurable cost savings.
Click to expand...
Backporting? You're making the assumption that AMD's IP isn't already highly node agnostic.

Even dead broke AMD made sure that the original Zen was node agnostic, forget current year AMD that can't grow fast enough to fully invest the oodles of cash they're making.
 
Kepler_L2 said:
I find this a bit hard to believe. The Navi3x GCD should be an SoC (unlike Ryzen CCDs) so it makes sense that Navi33 would be a single GCD by its own (with or without 3D IC if more B/W is needed). Also an 80 CU die on 6nm would be at a minimum 400mm², that's way too expensive for anything mid-range.
Click to expand...
N33 is designed to be as cheap as possible and as fast and powerful as possible.

Thats why AMD can ride the 6 nm node performance for this GPU.

Which kinda could tell you for which market segment this GPU is slated.
 
Glo. said:
N33 is designed to be as cheap as possible and as fast and powerful as possible.

Thats why AMD can ride the 6 nm node performance for this GPU.

Which kinda could tell you for which market segment this GPU is slated.
Click to expand...
I thought 6N was more about an area reduction, rather than any significant performance or efficiency improvement? Of course, there are other areas of improvement available from a design perspective.
 
Ajay said:
I thought 6N was more about an area reduction, rather than any significant performance or efficiency improvement? Of course, there are other areas of improvement available from a design perspective.
Click to expand...
The general idea behind what the rumors say about N33 is this.

"Its witchcraft."

And that should tell us everything we need to know. Nobody who heard the rumors about N33 is able to believe in them. Its not that they don't make sense.

Its just they are so good, that are truly hard to believe.
 
Glo. said:
Its just they are so good, that are truly hard to believe.
Click to expand...

For what I remember RDNA2 far surpassed my expectations.
I was seeing everyone believing and optimistic here and I was all doom and gloom.
"no way it would clock that high, no way it would be so efficient, no way it would reach parity with Nvidia on rasterization, no way it would even match Turing on RT".
I was wrong about everything.
I don't expect the same degree of miracle but now I'm more willing to believe that it'll be in fact "good" and AMD will make more progress than most expect. Will I be wrong this time?
 
Ajay said:
I thought 6N was more about an area reduction, rather than any significant performance or efficiency improvement? Of course, there are other areas of improvement available from a design perspective.
Click to expand...
TSMC has hinted that the N6 performance is similar to N7+ EUV node. N6 has one more EUV step compared to N7+
18% logic density gain which isn't much, ~10% efficiency gain and low single digit performance over N7. At worse similar perf with N7P with better power efficiency.
Also in 2021, TSMC is pushing most N7 customers to N6 because they can achieve higher WPM with N6.
 
DisEnchantment said:
Also in 2021, TSMC is pushing most N7 customers to N6 because they can achieve higher WPM with N6.
Click to expand...
Which is interesting considering the former is DUV only while the latter replaces layers with EUV. That step apparently significantly simplifies the production for TSMC to push its customers to there.
 
DisEnchantment said:
TSMC has hinted that the N6 performance is similar to N7+ EUV node. N6 has one more EUV step compared to N7+
18% logic density gain which isn't much, ~10% efficiency gain and low single digit performance over N7. At worse similar perf with N7P with better power efficiency.
Also in 2021, TSMC is pushing most N7 customers to N6 because they can achieve higher WPM with N6.
Click to expand...
Well, I can see why companies are choosing N6 then (in addition to the PDK/RTL being very similar to that of N7).
I find this amazing, the NXE:3400C series EUV lithographs max out at 170 wph and the 'B's are around 125 wph. The original target for 'commercial success' was originally 200 wfh. I wonder what has changed.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top