DeepSeek V4.1 Flash 552B — B300 vs MI325X Performance per Dollar
Cost per million tokens of B300 (NVIDIA Blackwell) versus MI325X (AMD CDNA 3) on DeepSeek V4.1 Flash 552B. 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 →
Push DeepSeek V4.1 Flash 552B to 71 tok/s/user and B300 lands at $0.00 per million tokens against MI325X's $0.04 — B300 pulls ahead by 787%.
B300: $0.01 per million tokens. MI325X: $0.06. Both at 116 tok/s/user on DeepSeek V4.1 Flash 552B, with B300 586% cheaper.
Toward the upper edge of the 27–204 tok/s/user interactivity band — at 160 tok/s/user — B300 runs $0.01 per million tokens on DeepSeek V4.1 Flash 552B while MI325X runs $0.10. B300 is the cheaper choice by 774%. (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): B300 $2.26/chip/hr · MI325X $1.10/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 | B300:$0.005MI325X:$0.043 | B300:$0.009MI325X:$0.063 | B300:$0.012MI325X:$0.101 |
| Concurrency | B300:~40MI325X:~11 | B300:~32MI325X:~6 | B300:~15MI325X:~4 |
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.