NVIDIA had been using Tesla as the name of its GPGPU products since 2007. Last week, when the company introduced its first Ampere datacenter GPU, NVIDIA introduced this part as the A100. Any reference to "Tesla" was mysteriously missing from the company's official communication.
German tech site Heise reports the GPU maker decided to abandon the Tesla branding to avoid confusion with the electric car company from Elon Musk. The site explains NVIDIA made the change in 2019, when it rebranded its Turing-based datacenter accelerator card from "Tesla T4" to "NVIDIA T4".
There's no indication about possible legal issues. As far as we know, NVIDIA and Tesla have an amicable relationship.