GLM 5.3 744B — MI325X vs MI355X Performance per Dollar
Cost per million tokens of MI325X (AMD CDNA 3) versus MI355X (AMD CDNA 4) on GLM 5.3 744B. Owning-hyperscaler TCO normalized by output tokens — performance per dollar across LLM workloads. Pick the more cost-efficient SKU at every target interactivity level. Use the chart controls below to switch sequences, precisions, and metrics — same interactions as the main inference chart.
AgentX replays real coding-agent sessions rather than fixed-length prompts, so context grows turn over turn and most of each request is served from cache instead of being recomputed. That turns the comparison into a systems question: KV transfer between nodes, prefix-aware routing, and cache capacity all move the curve alongside raw chip throughput. Fixed-sequence workloads stay the clean baseline for kernel and silicon performance, so the two scenarios answer different questions about the same hardware. Learn more about AgentX →
Only MI355X has cost data at 49 tok/s/user on GLM 5.3 744B — $0.03 per million tokens. MI325X is unmeasured at this target.
MI355X costs $0.06 per million tokens at 85 tok/s/user on GLM 5.3 744B; we have no MI325X benchmark data at this exact target.
At 122 tok/s/user on GLM 5.3 744B, MI355X comes in at $0.09 per million tokens. MI325X hasn't been benchmarked at this operating point. (Numbers reflect the default agentic-traces · fp4 selection for this URL — table and chart below update if you change sequence, precision, or model in the controls.)
Chip pricing (owning hyperscaler): MI325X $1.10/chip/hr · MI355X $1.50/chip/hr. Source: SemiAnalysis Market July 2026 Pricing Surveys & AI Cloud TCO Model.
| Metric | Interactivity (tok/s/user) | Interactivity (tok/s/user) | Interactivity (tok/s/user) |
|---|---|---|---|
| Dollar per Million Tokens | MI325X:—MI355X:$0.035 | MI325X:—MI355X:$0.056 | MI325X:—MI355X:$0.092 |
| Concurrency | MI325X:—MI355X:~10 | MI325X:—MI355X:~6 | MI325X:—MI355X:~2 |
Inference Performance
Agentic inference metrics from the AgentX scenario and fixed-sequence inference metrics across models, hardware configurations, and serving parameters.