How does AMD Instinct MI300X compare on raw specs to A100 and H100?

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AMD Instinct MI300X is a CDNA 3 card with 192 GB of HBM3 memory, 5,300 GB/s of bandwidth, and 1,307 TFLOPS of FP16 compute. It launched in 2023 and uses up to 750W of power.

On real workloads the memory subsystem is typically the most important factor: 5,300 GB/s of bandwidth is enough to sustain most transformer decoding tasks without starving the compute units, while 192 GB of VRAM supports a wide range of model sizes, especially once quantisation is applied.

Two tracked cloud providers currently offer AMD Instinct MI300X: Vultr and DigitalOcean. Vultr has the cheaper rate at $1.85/hr.