During the 2024 RISC-V Summit in Santa Clara, California, NVIDIA was one of the presenting members. RISC-V, being a free and open-source instruction set architecture, is an interesting choice for many companies looking to develop custom solutions. NVIDIA designs accelerators for AI and graphics processing, all of which are equipped with up to tens of thousands of cores. To manage these cores, NVIDIA has developed a custom RISC-V processor called "NV-RISCV," which is a replacement for its predecessor "Falcon." Unlike Falcon, NV-RISCV is based on an open-source ISA and is customized much more deeply, with features like more customized caches and special instructions. Initially, the company reported better performance over its Falcon GPU System Processor (GSP), and NV-RISCV is now running in millions of NVIDIA chips.

Thanks to a post on X by Nick Brown, we learn that NVIDIA is shipping roughly one billion RISC-V cores in the year 2024. Each NVIDIA chip includes between 10 and 40 RISC-V cores, depending on the chip size and complexity. Some more complex designs, like GB200, require massive data coordination, meaning that more cores are needed to handle these requests and distribute them. This includes chip-to-chip interfaces, context switching, memory controller, camera handling, video codecs, display output, resource management, power management, and more. NVIDIA has developed a total of over 20 custom extensions for RISC-V cores, which all serve their specific use cases.