Discussion Nvidia Blackwell in Q1-2025

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Win2012R2

Senior member
Dec 5, 2024
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It dual issues a vector FP instruction at the same time as a vector INT instruction.
Ok, fine, but Turin could run them in parallel - at the same time on same CUDA core, later in Ampere additional FP32 only was added that could be active only if INT was not used, and now they all support INT but only without FP32 - a clear regression on core that was in Turing
 

Win2012R2

Senior member
Dec 5, 2024
647
609
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What's the minimum production lot at TSMC - surely can't be less than 1000 wafers? There should have been 50-60k 5090 level chips minted long time ago, where are they?
 

Grooveriding

Diamond Member
Dec 25, 2008
9,144
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How is this such a paper launch if they ramped down 40 series, and it’s on the samr node? All the major PC stores in Canada got absolutely nothing. No stock at all. The one exception was Best Buy with however many FE cards they had that sold out immediately.

By far the worst nvidia has done in as long as I can remember. The 5080 is a joke of a new generational offering, and the only interesting card had what looks to be a thousand or so pieces worldwide. What a farce. They screwed up royally somewhere. Would be interesting to have whatever made this such a mess leak out.
 

blckgrffn

Diamond Member
May 1, 2003
9,501
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www.teamjuchems.com
Jarred at Tom's basically admits he needs to come up with postives about Nvidia:
A couple responses later there is a note from Jarred about “something funny going on in the Blackwell drivers” limiting performance at lower resolutions, which wipes away all performance advantage of the 5080 over the 4080S.

Welp *slaps knees, stands up* I can’t wait to read 6000 series reviews where a big pro is how great Nvidia cards are out of the gate and how they never ever have the type of driver issues that AMD has. As my son would add, “no cap.” I'm out of this for a bit.

When do we start the next gen thread?
 
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Mopetar

Diamond Member
Jan 31, 2011
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I disagree. It would be like if Ford released a New Mustang that was just like the previous Mustang, because that is exactly what happened.

You can disagree, but I think you're factually wrong. As recently as Ampere the x80 cards used the largest die. The size ratio between the largest die and the next step down is the largest it's ever been. The last time it was close to this large of a gap was Maxwell, but the 980 was on the GM200 die which was the largest die.

Over the past ten generations of NVidia cards in 6 of them the x80 card was on the largest die. All of the 4 times it wasn't have been in the past 5 generations. In other words the branding has been watered down over time.

Another way to look at this is where the x80 card occurred in the product stack. Going back all the way to Fermi (400 series) it was the top card and until the orignal TITAN with Kepler the x80 was the top single die GPU with early x90 cards being dual GPU cards.

They've just been doing it slowly enough that you haven't noticed. And for most of the period where this has been happening, AMD has had no real competition so no one seemed to care. The only recent generation where the x80 card was on the big die was when AMD had a full stack RDNA2 architecture that was competitive.
 

jpiniero

Lifer
Oct 1, 2010
15,633
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IMO, the 3080 used the biggest die partially because of TTM issues and partially because of Samsung 8 nm yields. Probably originally intended to use AD103.
 

Heartbreaker

Diamond Member
Apr 3, 2006
4,653
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You can disagree, but I think you're factually wrong. As recently as Ampere the x80 cards used the largest die. The size ratio between the largest die and the next step down is the largest it's ever been. The last time it was close to this large of a gap was Maxwell, but the 980 was on the GM200 die which was the largest die.

Over the past ten generations of NVidia cards in 6 of them the x80 card was on the largest die. All of the 4 times it wasn't have been in the past 5 generations. In other words the branding has been watered down over time.

Another way to look at this is where the x80 card occurred in the product stack. Going back all the way to Fermi (400 series) it was the top card and until the orignal TITAN with Kepler the x80 was the top single die GPU with early x90 cards being dual GPU cards.

They've just been doing it slowly enough that you haven't noticed. And for most of the period where this has been happening, AMD has had no real competition so no one seemed to care. The only recent generation where the x80 card was on the big die was when AMD had a full stack RDNA2 architecture that was competitive.


I know I'm completely correct about your ridiculous car analogy. NVidia essentially released the same card again, for the a new generation. For a car analogy it would be like release the same car again, not a completely different smaller car. Your analogy is what I pointed out as nonsensical.

As for the rest of it. I'll leave arguing about the names associated with historical chip size ratios, to the few of you that care about that. It's irrelevant minutia.
 

gdansk

Diamond Member
Feb 8, 2011
3,768
6,015
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IMO, the 3080 used the biggest die partially because of TTM issues and partially because of Samsung 8 nm yields. Probably originally intended to use AD103.
GA103 with 8GB or 16GB? In either case it would have been soundly beat by N21 chops. If it had been intended Nvidia had plenty of reasons to call an audible.
 

n0x1ous

Platinum Member
Sep 9, 2010
2,574
252
126
You can disagree, but I think you're factually wrong. As recently as Ampere the x80 cards used the largest die. The size ratio between the largest die and the next step down is the largest it's ever been. The last time it was close to this large of a gap was Maxwell, but the 980 was on the GM200 die which was the largest die.

Over the past ten generations of NVidia cards in 6 of them the x80 card was on the largest die. All of the 4 times it wasn't have been in the past 5 generations. In other words the branding has been watered down over time.

Another way to look at this is where the x80 card occurred in the product stack. Going back all the way to Fermi (400 series) it was the top card and until the orignal TITAN with Kepler the x80 was the top single die GPU with early x90 cards being dual GPU cards.

They've just been doing it slowly enough that you haven't noticed. And for most of the period where this has been happening, AMD has had no real competition so no one seemed to care. The only recent generation where the x80 card was on the big die was when AMD had a full stack RDNA2 architecture that was competitive.
the 980 was not GM200, it was GM204 - only the 980 Ti and Titan were GM200
 

coercitiv

Diamond Member
Jan 24, 2014
6,956
15,589
136
From Techpowerup's review of the Suprim:


And his impressions on overclocking:
Overclocking the RTX 5080 Suprim SOC worked very well, we gained +12% in real-life performance on top of the factory OC. This is much more than what we usually see on modern graphics cards.
Unfortunately NVIDIA is limiting the maximum overclocking for the GDDR7 memory chips to +375 MHz—usually NVIDIA doesn't have any OC limits. At first, I was wondering why NVIDIA left so much performance on the table, especially when the card's gen-over-gen gains are so small, but then I realized that they might want to build a RTX 5080 Super next year. The problem is that RTX 5080 already maxes out the GB203 GPU, so additional units can't be enabled, and they'll have to rely on increases to clock speeds only. Looking at our numbers, higher clocks and memory speeds, some firmware optimizations, maybe even faster GDDR7 chips can definitely yield +10% in mass production—RTX 5080 Super spotted.
 
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