RTX 6000 “Blackwell”? : Nvidia delivers graphics cards with 96 GB of GDDR7 memory 37 comments
Image: Nvidia
Yesterday, photos of an Nvidia prototype with a full GB202 configuration, 32 GB of GDDR7 and a dual 12V 2×6 connection circulated; today, entries of Nvidia graphics cards with 96 GB of GDDR7 memory appeared in the shipping documents – the new Nvidia RTX is behind 6000 “Blackwell”?
96 GB of memory is possible on the GB202
The GeForce RTX 5090 with GB202 offers 32 GB of GDDR7. For this purpose, sixteen 2 GB modules are connected to sixteen 32-bit memory controllers on the GPU (512 bits in total). But 48 GB or 96 GB would also be possible. The Nvidia RTX 6000 “Ada”, the high-end workstation model, currently has 48 GB. 96 GB would be a real improvement.
Suspected Nvidia graphics cards (dev kits) from Blackwell graphics cards with 96 GB GDDR7 (Image: NBD data)
48 GB is possible if 16 3 GB chips are connected to the GB202 chip instead of 16 2 GB chips – these chips will officially be used exclusively in the GPU of the GeForce RTX 5090 laptop from March and will help the card graphics with the GB203 GPU on the 256- little chip therefore 24 GB of memory, while the RTX 5080 and RTX 5070 Ti have the same chip, but only 2GB chips come in at 16GB.
If two of these 3 GB chips were connected to a 32-bit controller and the front and back of the graphics card were each equipped with 16 chips (“clamp shell”), the 96 GB mentioned in the papers would be a reality. The fact that these are still 512-bit GPUs is immediately apparent from the entries. The card identification (PG153) indicates that Nvidia is behind this.
Nvidia RTX “Blackwell” in March?
It is quite possible that Nvidia will present the next generation Nvidia RTX “Blackwell” for workstations at the GPU Technology Conference in March, Nvidia’s annual internal exhibition. Perhaps there will also be a combination of the two rumors: 96 GB on a full GB202 expansion with 800 watts via two 12V 2x6s. On the other hand, Nvidia only specified the RTX 6000 “Ada” with a larger chip compared to the GeForce RTX 4090 with a TDP of 300 watts instead of 450 watts – the workstation graphics cards have generally lower clock speeds and are therefore more economical. With the 800 watts announced, a turning point would be imminent.
Blackwell Ultra for HPC accelerators is also expected to be unveiled at GTC 2025. The update, likely with 288 GB HBM3e and 1.4 kW TDP, will be released this year before the release of Blackwell’s true successor, “Rubin”, the next year.
The cover photo of this report shows the Nvidia RTX 6000 “Ada”.
Topics: Nvidia Nvidia Blackwell graphics cards
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