Question Speculation: RDNA2 + CDNA Architectures thread

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uzzi38

Platinum Member
Oct 16, 2019
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All die sizes are within 5mm^2. The poster here has been right on some things in the past afaik, and to his credit was the first to saying 505mm^2 for Navi21, which other people have backed up. Even still though, take the following with a pich of salt.

Navi21 - 505mm^2

Navi22 - 340mm^2

Navi23 - 240mm^2

Source is the following post: https://www.ptt.cc/bbs/PC_Shopping/M.1588075782.A.C1E.html
 

Stuka87

Diamond Member
Dec 10, 2010
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Ah yes, I remember those days; 9500 unlocked to 9700, DLT3C stepping TBred 1700+ running 2.4+ Ghz, and some BH5 DDR running at 3.5v.

Or unlocking Phenom II 550BE dual core to a 965BE quad core.

But these types of things have not been the case for a while. Cut down chips have physical blocks in the disabled cores to prevent us from doing such thing.
 
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Mopetar

Diamond Member
Jan 31, 2011
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I sh* you not. That's what some Nvidia fans on Twitter are saying and believing.

Why would anyone use what random idiots on social media think for any kind of baseline for expectations? If they aren't regurgitating flat earth nonsense into each other's face holes, they're rambling on about vaccines or any number of other topics on which they're equally ill informed. Your average person on social media is scarcely more intelligent than a baboon and smells twice as bad. Social media is proof that the SETI program should probably direct its sensors down at earth before they worry about any kind of extra terrestrial intelligence.
 

Stuka87

Diamond Member
Dec 10, 2010
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In the distant future the extra terrestrials will visit Earth and find that Social media was the devise of mankind.

9 days till the hype train hits dead mans curve. Will it survive?

Has one ever survived? Even releases that were very strong still had hype that was above them. Zen 1 was a strong release, but even at that it did not meet hype. Zen 3 might equal the hype, we will find out in a few weeks.

The original Core architecture was worthy of the hype.

On the GPU side of things though, having trouble finding one. Pascal was a really strong release, and minus initial prices, was well received. But even then not sure it equaled the hype.
 

GodisanAtheist

Diamond Member
Nov 16, 2006
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So the leaks are suggesting N21= 80CU; N22=40CU; N23=32CU and N24=24CU? Doesn't make sense to me- Navi 22-24 all close together and then huge cap to Navi 21.

Also the leaked clockspeeds are all over the place- anywhere from 2GHz-2.5GHZ.

- This has likely been covered somewhere in the 130+ pages of this thread, but I'm curious as well of the logic of having a 80CU chip, then 40/32/24 CU chips.

I understand the huge gap between the 80 and 40, plenty of die harvesting possible to fill that gap, but I would have figured we'd get a 40 CU Chip and a 20CU chip mirroring RDNA 1 (naturally as chips get smaller, you have to artificially segment rather than naturally harvesting dies).

Its been a helluva thread, can anyone refresh the argument for this?
 
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PhoBoChai

Member
Oct 10, 2017
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Digital Foundry just uploaded a video highlighting Xbox Series X power and thermals.

Few quick takeaways are Rise of the Tomb Raider peaked at 151W, Dead or Alive 6 at 165W, and Gears 5 at 211W. Richard even made a nod to Big Navi at the end of the video, which I thought was amusing.

DF claims Gears 5 now runs RNDA2 optimized code with an update. No more rushed port.

With ray traced GI and contact hardening shadows. Native 4K60. Ultra settings.

All that from 52 CU... Hype much?
 

kurosaki

Senior member
Feb 7, 2019
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Yes, overhyped, as everything AMD always does.
Not to be mean or anything. But aren't you overhyping a bit now? I mean, it won't perform better than a five years old handdrawing, and still you proclaim the the 6000-series will perform almost like a videocard?
Isn't there any shame in your body? Do you think you can fool anyone by this. No, the 6900xt will render as bad as a HTC Hero, cut in half, by an axe. Everything else is biased hype.

Heard it from a very trustworthy source on YouTube. He talked about it for like 15 mins, so it must be true.
 

PhoBoChai

Member
Oct 10, 2017
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Yes. They are overhyping RDNA2 architecture.

Its crap, as everything AMD always does.

Well, just assume AMD is "competitive" with RDNA 2. Don't expect more than that and if they are better, its a good surprise.

I'm just impressed by the Gears 5 results, on PC, 4K Ultra ~60 FPS is already well above 2080Ti. Series X doing that and with 2 ray traced effects is just amazing. Surely, they are doing temporal reconstruction, theres no chance for actual native 4K60.

I just wished DF did a deeper look into that, because it doesn't match their earlier narrative that Series X = 2080.
 

dzoni2k2

Member
Sep 30, 2009
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Well, just assume AMD is "competitive" with RDNA 2. Don't expect more than that and if they are better, its a good surprise.

I'm just impressed by the Gears 5 results, on PC, 4K Ultra ~60 FPS is already well above 2080Ti. Series X doing that and with 2 ray traced effects is just amazing. Surely, they are doing temporal reconstruction, theres no chance for actual native 4K60.

I just wished DF did a deeper look into that, because it doesn't match their earlier narrative that Series X = 2080.

That was an earlier port wasn't it? From 2080 Gears 5 benchmarks that I've seen 2080 gets around 50fps at 4K Ultra.
 

Glo.

Diamond Member
Apr 25, 2015
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During AMD Zen 3 keynote, they demoed Big Navi in Gears 5 getting average of 73 FPS, at 4K, ultra preset.

This is 20% better performance, than you get at 52 CUs clocked at 1825 MHz.

So as we can see, this is confirming, that during the Zen 3 keynote, they demoed the largest, and fastest version of the GPU. Thats all there is.

80 CUs, clocked at 2.4 GHz roughly 20% faster than 52 CUs clocked at 1825 MHz.

Scaling. AMD is so incompetent, they thought they can run away with 256 bit bus! Its going to be crap, from top to bottom.
 

PhoBoChai

Member
Oct 10, 2017
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That was an earlier port wasn't it? From 2080 Gears 5 benchmarks that I've seen 2080 gets around 50fps at 4K Ultra.

Yeah, but PC doesn't run RT GI or CH Shadows. However, PC also doesn't run temporal reconstruction or dynamic resolution.

Quite hard to compare directly. Stuff like DLSS2 for NV and TR/DS for consoles blur the line of "native" benchmark comparisons.
 

DDH

Member
May 30, 2015
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During AMD Zen 3 keynote, they demoed Big Navi in Gears 5 getting average of 73 FPS, at 4K, ultra preset.

This is 20% better performance, than you get at 52 CUs clocked at 1825 MHz.

So as we can see, this is confirming, that during the Zen 3 keynote, they demoed the largest, and fastest version of the GPU. Thats all there is.

80 CUs, clocked at 2.4 GHz roughly 20% faster than 52 CUs clocked at 1825 MHz.

Scaling. AMD is so incompetent, they thought they can run away with 256 bit bus! Its going to be crap, from top to bottom.
While this new Glo is entertaining, i prefer the old. I have a spare ticket for the Choo Choo, it stops for nothing and no one