Any version of the Hopper architecture counts. https://www.nvidia.com/en-us/data-center/technologies/hopper-architecture/

The question resolves either due to official figures (to my knowledge, NVIDIA doesn't publish unit sales) or due to my personal median estimate, based on any sources provided in the comments. I will not bet on this market.

Note that I have tangentially made estimates about NVIDIA's production capacity and unit sales as part of my job in the past.

NVIDIA Hopper GPU Architecture

The Hopper GPU architecture delivers the next massive leap in accelerated data center platforms, securely scaling diverse workloads.