Discussion Nvidia Blackwell in Q1-2025

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Win2012R2

Senior member
Dec 5, 2024
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48 vs 56 SMs and Blackwell's clocks are only barely higher.
Where did you get info on Blackwell's clocks? It seems to be well hidden to disclose it as far away from presentation as possible, clearly they are not great, perhaps even regression.
 

poke01

Diamond Member
Mar 8, 2022
3,040
4,031
106
I don't know maybe I'm old school but there is something I don't like about this frame generation. Perhaps I just don't know enough about these new Blackwell GPUs yet.
AMD will copy it soon and later Intel. So get to know multifake frames well.😛
 

jpiniero

Lifer
Oct 1, 2010
15,634
6,111
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yeah same node, can't do magic.

Should be using N4P tho, which should be allowing for a decent boost in clocks. It appears to be design driven. Remember that 40 series cards were doing 2.7 easy at stock.

Might even be slower than 4070 NS in raster.
 

GodisanAtheist

Diamond Member
Nov 16, 2006
7,479
8,253
136
Well this has been an overall kinda weird and disappointing CES.

Looks like Nvidia is on its own kind of tick tock now, with a performance tick one gen and then a price tick the next gen.

Turing was all new features but garbage pricing. Ampere had fantastic MSRP pricing but lame performance uplift. Ada has a solid performance uplift but garbage MSRP pricing. Now Blackwell has reasonable pricing but weak performance uplift.

Wonder if any of these prices will actually make it to the street, esp after the tariffs hit.
 

branch_suggestion

Senior member
Aug 4, 2023
505
1,056
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Now that low precision has been pushed to the limit, the bottleneck now is a battle of CPU draw calls and memory bandwidth.
You can only push fake frames so far without reaching a physical limit.
Cache can also help, but it matters less for transformer style compute, though I assume we are at 128MB L2 now.
 

poke01

Diamond Member
Mar 8, 2022
3,040
4,031
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three things I don’t like, nothing is interesting from a RTX 40 user standpoint.

12GB on $500 cards is not good. Finally, it’s not N3E. So it’s gets a skip from me
 

gdansk

Diamond Member
Feb 8, 2011
3,768
6,020
136
Now that low precision has been pushed to the limit, the bottleneck now is a battle of CPU draw calls and memory bandwidth.
You can only push fake frames so far without reaching a physical limit.
Cache can also help, but it matters less for transformer style compute, though I assume we are at 128MB L2 now.
The 5090 being CPU limited I could believe. But the others? Nah...
 

gdansk

Diamond Member
Feb 8, 2011
3,768
6,020
136
three things I don’t like, nothing is interesting from a RTX 40 user standpoint.

12GB on $500 cards is not good. Finally, it’s not N3E. So it’s gets a skip from me
Like
  1. 512-bit
  2. 28gbps memory
  3. 32GB of memory
  4. 2 slot cooler
Dislike
  1. More fake frames
  2. $2000 MSRP (even if it makes sense)
  3. Lower clock rates than expected?
  4. Is it louder than last FE?
All the other parts are less inspiring.
 
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Heartbreaker

Diamond Member
Apr 3, 2006
4,653
6,113
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But this would insert lag into the gaming experience? Gaming by nature has to be realtime.

Yes. It's well know that Fake Frame generation adds lag. Generally 1 full frame time, of the real frame rate. So if you are running 60 FPS real, then you add about 17 ms of lag when you turn on fake frames.

Not much should change in lag by adding more fake frames.


I'm under the assumption that using your analogy it only needs to predict what the screen will look like for 3 frames. So instead of computing those 3 frames, they are predicted. Assuming you are running 100fps, that's 3ms or 1 frame per ms. The 4th frame is then computed. Since only 3 ms has transpired unless there was a complete scene change the difference between the 3rd predicted frame what that actual computed 3rd frame would have looked like will be basically nothing, so then the moving from frame 3 (predicted) to frame 4 (computed) would be smooth.
I don't like predicted, because it's not a future looking operation. They are interpolations between two known frames. You are always figuring out positions in between two frame you already have.


I would assume that the faster the hardware can natively run the game the more predicted frame can be used. So if the game is running natively at 60fps maybe only 1 frame can be predicted between computed frames. But if it's running 150fps, then perhaps 2 or 3 frames can be predicted.

I would think it the other way around. The higher your native frame rate, the smaller the window between frames, to insert your fake ones.

60 FPS = 17ms window to insert fake frames.
240 FPS = 4ms windows to insert fake frames.
 

poke01

Diamond Member
Mar 8, 2022
3,040
4,031
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I’ll wait for reviews, IMO the node being the same is the biggest disappointment. That’s why the pricing is “sane”.

But GDDR7 might make up for it in apps and games.
 
Jul 27, 2020
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Bad news is that $549 seems a bit high for fake frame generation card and only 12GB VRAM.

Good news is that gives AMD and Intel up to $500 price point to deliver a compelling product. Hope they don't mess up.
 
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