AMD's MI500X instruction set architecture (ISA) has been released, featuring a single TDM MOE descriptor shared across all experts. This design choice, also seen in the MI455X with TDM (nicknamed RMA), directly copies NVIDIA's SM90 Hopper ISA TMA.
AMD's new MI500X ISA directly adopts NVIDIA's Hopper TMA approach, indicating a convergence in AI accelerator architecture for Mixture-of-Experts models.