According to the roadmap, NVIDIA will launch the next generation Blackwell GPU architecture in 2025, and there will be two flowers: the GB100 series core is oriented to high-performance computing and artificial intelligence, and the GB200 series core is oriented to games and creation. According to the latest news from authoritative leaker kopite7kimi,The GB100 core will be equipped with 10 groups of GPCs, and each group of GPCs is divided into 8 groups of TPCs. This is different from the layout of GA1008x8 and GH1008×9.
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JD.com NVIDIA series product summary
Theoretically, each group of TPC should still have 2 groups of SMs, and each group of SMs should still have 128 CUDA cores, that isA total of 20,480 CUDA cores, an 11% increase over the current GH100 cores.
at the same time,The bit width of HBM video memory has been expanded to 8192-bit, which is a full 1/3 increase compared to GH100., which means that the video memory capacity can reach 128GB, and it will definitely be upgraded to HBM3.
Of course, as usual, the B100 computing card will not be fully charged and will block some units and video memory width/capacity.
What we are more interested in is the game card core GB202. According to reports, it still has 12 groups of GPCs like the current AD102, but the number of TPCs in each group has increased from 6 to 8.
This means,GB202 will have a total of 192 sets of SMs and 24567 CUDA cores, an increase of a full 1/3!
What’s even more surprising is that kopite7kimi confirmed the previous speculation,The GB202 core will really support 512-bit bit width, which is also 1/3 more than now. This means that the video memory capacity can reach 32GB, and it will be a new generation of GDDR7.
GB202 architecture diagram conjecture
The last time the native 512-bit video memory was wide, it was the Hawaii GPU core in the AMDR200/R300 era.
As usual, the RTX5090 will not be at full health, and there may not be an RTX5090Ti.
According to previous statements,The GB202 core will also have doubled 128MB cache, and the core frequency can reach about 2.9GHz, which can actually exceed 3GHz.
There will also be four different levels of cores under it: GB203, GB205, GB206, and GB207.