NVIDIA GB202 “Blackwell” 760mm² GPU die shot revealed: 24756 cores and 512-bit bus

[harlan4096]

NVIDIA GB202 die pictured up close



The GB202 die area is 750 mm² according to NVIDIA (via HardwareLuxx) or 761 mm² according to ASUS China General Manager Tony Yu, who revealed the die shots in a longer review of the RTX 5090D graphics card this week. Physically, the GPU die is identical to the GB202-300 used on the RTX 5090, but the 5090D graphics card uses a different variant called GB202-250.

NVIDIA states that its GB202 GPU has up to 21,760 CUDA cores while using the TSMC N4P node, a modified version of N4 used on Ada Lovelace, notes Tom’s Hardware. The GPU die is estimated to be around 24% larger than the AD102, showing the physical limitations of this new node.


Source: NVIDIA/Tony Yu

Thanks to Tony’s die shot pictures and the work of Kurnal, who provided the adnotations, we can see that the GPU has the same number of GPCs (Graphics Processing Clusters) as the AD102. However, the total SM (Streaming Multiprocessor) count has increased. The GB202 is said to have a total of 96 TPCs (Texture Processing Clusters) and a combined L2 cache of 128GB.



Source: Kurnal/HardwareLuxx

A full config GB202 features 192 SMs, with each carrying 128 CUDA cores. The GB202 GPU has a total of 24,756 CUDA cores, 192 RT Cores, 768 Tensor Cores, and 768 Texture Units. The RTX 5090 uses 21760 cores, but upcoming RTX Blackwell workstation variants should have more cores enabled. 

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