Nvidia Blackwell Architecture Speculation

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Dangerman said:
That said I expect RTX 60 GeForce to use 3GB modules across the board (maybe 6090 has 42GB and a 6090 Ti with 48GB? And hopefully RDNA 5/UDNA Gen 1 has a top end option as well).
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This would depend on the bus widths, which themselves would depend on the memory speeds. The RTX 6060 and 6070 would likely be bandwidth-limited if they retain the 128-bit and 192-bit memory buses of Lovelace and Blackwell unless they use faster GDDR7 than Blackwell is using. And if they do bump up the bus widths a tier (going back to Ampere sizes) then I doubt Nvidia would be generous enough to go with 3GB modules.
 
raytracingfan said:
This would depend on the bus widths, which themselves would depend on the memory speeds. The RTX 6060 and 6070 would likely be bandwidth-limited if they retain the 128-bit and 192-bit memory buses of Lovelace and Blackwell unless they use faster GDDR7 than Blackwell is using. And if they do bump up the bus widths a tier (going back to Ampere sizes) then I doubt Nvidia would be generous enough to go with 3GB modules.
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I haven't seen anyone benchmark Blackwell with varying memory speeds but I suspect it has far more bandwidth than it needs. A 5070 is slower on average than a 4070 ti but has 33% more memory bandwidth. Even with no increase in memory bandwidth or architecture improvements - just a node shrink and more SMs - I'm sure a 6070 could easily be ~40% faster than a 5070 on the same 192 bit 30 Gbps memory layout.

And it'll probably be more like 34-36 Gbps GDDR7, so 60-70% faster on the same bus width would still be the same perf:bandwidth ratio as Ada.
 
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Dangerman said:
That said I expect RTX 60 GeForce to use 3GB modules across the board (maybe 6090 has 42GB and a 6090 Ti with 48GB? And hopefully RDNA 5/UDNA Gen 1 has a top end option as well).
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I wouldn't necessarily assume that. They were selective with Ampere between 1GB and 2GB. From a product segmentation perspective they could view 16GB as "enough" and leave those ones with 2GB akin to the 256bit Ampere configurations.
 
trinibwoy said:
The hits keep coming.

Alleged fire hazard recall on 5090s.

www.kitguru.net

Retailer claims Nvidia is recalling ‘large number’ of RTX 5090 graphics cards due to fire hazard - KitGuru

There have already been a few RTX 5090 graphics cards sold only to burn out due to the amount of pow
www.kitguru.net www.kitguru.net
​

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Your Game Specialist has retracted the claim that Nvidia has issued an RTX 5090 recall. The customer who was told that they could not receive their graphics card due to the recall is now getting their unit next week and the retail outlet is conducting an internal investigation. The new story can be found here.
 
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Cyan said:
If NVIDIA lived only from PC GPUs, it would be on the verge of dying of success.

More than 78 million PC GPUs were shipped during the last quarter of 2024. 😮😮

NVIDIA leads this market with a 65% share, while Intel and AMD settle for 16% and 18%.

www.jonpeddie.com

Q4’24 PC GPU shipments increased by 6.2% from last quarter; supply constraints dampened a strong demand quarter

Data center GPUs were up an average of 14% from last quarter.
www.jonpeddie.com www.jonpeddie.com
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That's PC GPU shipments including IGPs. Discrete GPU shipments is more like 70m per year not per quarter.

Intel leads with 65%, followed by AMD with Nvidia last at 16%.
 
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And another one:

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Couple of interesting point vs 40 series:
  • (130/)150/180W vs 115/160(/165) (4060/4060Ti8(/Ti16)). 5060Ti16 will probably have more than 180W TDP as well.
  • All cards get some minor bumps in SPs:
    • 5050 2560 vs something (3050 has 2560 as well but likely way lower clocks)
    • 5060 3840 vs 3072 in 4060
    • 5060Ti 4608 vs 4352 in 5060Ti
  • If we use the 2.7GHz as a sustained boost clock this gives us:
    • 5050 ~14TF (vs 16.5 on 4060)
    • 5060 ~21TF (vs 23.5 on 4060Ti)
    • 5060Ti ~25TF (vs 32 on 4070)
  • So these will likely be similar to 5070 vs 4070 Super where the memory will let them be on par or even faster maybe than the previous one tier higher positioned 40 series parts.
  • The exception is the 5050 though which will use G6 and will thus likely end up being slower than the 4060.
  • I also have doubts about 5060Ti being able to outrun 4070 - these will likely end up being even at best.
  • It's interesting that GB207 has kept 128 bit bus. This chip will seemingly end up being very small - AD107 is 150mm^2 with +20% of SPs.
 
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