Rumor: Nvidia GB202 GPU for RTX 50 series gets 384bit memory bus and GDDR7

The upcoming Nvidia GB202 GPU, which is expected to be used in the GeForce RTX 50 series, may have a 384bit memory bus and use GDDR7 memory. This is reported by a well-known leaker. Rumors previously circulated that the GPU would have a 512-bit memory bus.

Well-known Nvidia leaker kopite7kimi reports on social media that the GB202 GPU will have a 384bit memory bus. This leaker regularly shares correct information about future Nvidia video cards. Rumors previously circulated that Nvidia would provide the upcoming flagship GPU with a 512-bit memory bus, but the leaker is now backtracking on that. The

The new GPU is also said to support GDDR7 memory. According to an earlier roadmap from Micron, that memory will be produced in the first half of next year. The memory would offer a bandwidth of up to 32Gbit/s per pin next year, compared to a maximum of 24Gbit/s with the current GDDR6X. In combination with a 384bit memory bus, the bandwidth of the GB202 with GDDR7 memory would be over 1.5TB/s.

According to previous rumors gets the GB202 GPU 192 streaming multiprocessors. That would amount to a maximum of 24,567 CUDA cores, an increase of 33 percent compared to the current AD102 GPU used in the RTX 4090. However, that does not mean that RTX 50 video cards with so many cores will be released; Video cards are often supplied with a partially disabled GPU for better yields. For example, the current RTX 4090 has 16,384 CUDA cores, while the AD102 GPU used theoretically has 18,432 CUDA cores.

Nvidia is expected to introduce its RTX 50 series next year. However, an exact release date is not yet known. The RTX 30 and RTX 40 series were announced in September 2020 and 2022, but it is unknown if Nvidia will maintain a similar release schedule for its upcoming GPUs.