MiniMax M3.1 Flash 428B — GB200 NVL72 vs MI355X Performance per Dollar
Cost per million tokens of GB200 NVL72 (NVIDIA Blackwell) versus MI355X (AMD CDNA 4) on MiniMax M3.1 Flash 428B. Large-hyperscaler-volume ownership TCO normalized by total 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 →
On MiniMax M3.1 Flash 428B at 157 tok/s/user, the per-million math comes out to $0.01 for GB200 NVL72 and $0.02 for MI355X; GB200 NVL72 delivers 48% more total tokens per dollar.
At 281 tok/s/user on MiniMax M3.1 Flash 428B, GB200 NVL72 costs $0.03 per million tokens; MI355X costs $0.03. GB200 NVL72 is 22% more cost-efficient at this operating point.
GB200 NVL72 edges MI355X at 405 tok/s/user on MiniMax M3.1 Flash 428B — $0.05 per million tokens versus $0.06, a 21% cost-per-token gap. (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): GB200 NVL72 $1.86/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 | GB200 NVL72:$0.012MI355X:$0.018 | GB200 NVL72:$0.025MI355X:$0.031 | GB200 NVL72:$0.046MI355X:$0.055 |
| Concurrency | GB200 NVL72:~25MI355X:~14 | GB200 NVL72:~11MI355X:~7 | GB200 NVL72:~6MI355X:~3 |
Inference Performance
Agentic inference metrics from the AgentX scenario and fixed-sequence inference metrics across models, hardware configurations, and serving parameters.
No data available
No measurements to plot for this selection. Review the benchmark controls above or adjust quick filters.