Nvidia plans to release the first DPUs named BlueField-2 in 2021. These cards will include a Mellanox NIC and an ARM processor with 8 Cortex-A72 cores. There will also be a BlueField-2X card that includes an Ampere GPU for AI-based tasks. DPUs are meant to relieve server CPUs of certain tasks, making them perform 30% faster.
https://www.notebookcheck.net/Nvidia-s-BlueField-DPUs-combining-Mellanox-and-ARM-tech-pave-way-to-data-center-market-domination.496772.0.html