Analyst: The HBM specifications of Nvidia's Rubin Ultra have yet to be determined.

Analyst Qinbafrank stated that the market rumors regarding NVIDIA's Rubin HBM reduction do not refer to the standard version Vera Rubin NVL72, which has already started delivery and is gradually ramping up. Instead, they pertain to the upgraded Rubin Ultra configuration specifications, which are not yet finalized and are scheduled for release in the second half of 2027. Multiple institutions expect that compared to NVIDIA's previously showcased aggressive configurations at GTC, there is a possibility that the specifications of the final mass production version may be downgraded.