GLM 5/5.1 — MI325X vs MI355X
Head-to-head AI inference benchmark comparison of MI325X (AMD CDNA 3) and MI355X (AMD CDNA 4) on GLM 5/5.1. Latency, throughput, and cost across LLM workloads. Use the chart controls below to switch sequences, precisions, and metrics — same interactions as the main inference chart.
At 21 tok/s/user interactivity on GLM 5/5.1, MI325X delivers 173 tok/s/chip at $1.79 per million tokens; MI355X delivers 1025 tok/s/chip at $0.41. MI355X is 336% cheaper per token; MI355X delivers 493% more tok/s/chip at this point.
MI325X posts 101 tok/s/chip for $3.04 per million tokens at 26 tok/s/user on GLM 5/5.1; MI355X posts 980 tok/s/chip for $0.43. MI355X is 607% cheaper per token; MI355X delivers 868% more tok/s/chip.
Throughput at 30 tok/s/user on GLM 5/5.1: MI325X hits 62 tok/s/chip, MI355X hits 955. Per-million costs land at $4.91 and $0.44 respectively. MI355X is 1014% cheaper per token; MI355X delivers 1451% more tok/s/chip. (Numbers reflect the default 1k/1k · fp8 selection for this URL — table and chart below update if you change sequence, precision, or model in the controls.)
| Metric | Interactivity (tok/s/user) | Interactivity (tok/s/user) | Interactivity (tok/s/user) |
|---|---|---|---|
| Throughput (tok/s/chip) | MI325X:172.9MI355X:1025.3 | MI325X:101.3MI355X:980.4 | MI325X:61.6MI355X:954.6 |
| Cost ($/M tok) | MI325X:$1.789MI355X:$0.411 | MI325X:$3.037MI355X:$0.430 | MI325X:$4.907MI355X:$0.441 |
| tok/s/MW | MI325X:102283MI355X:490568 | MI325X:59939MI355X:469105 | MI325X:36421MI355X:456733 |
| Concurrency | MI325X:~34MI355X:~128 | MI325X:~16MI355X:~128 | MI325X:~9MI355X:~128 |
Inference Performance
Inference performance metrics across different models, hardware configurations, and serving parameters.