Qwen 3.5 397B-A17B — B200 vs GB200 NVL72 Performance per Dollar
Cost per million tokens of B200 (NVIDIA Blackwell) versus GB200 NVL72 (NVIDIA Blackwell) on Qwen 3.5 397B-A17B. 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 →
At 135 tok/s/user on Qwen 3.5 397B-A17B, B200 costs $0.01 per million tokens; GB200 NVL72 costs $0.01. GB200 NVL72 is 9% more cost-efficient at this operating point.
B200 edges GB200 NVL72 at 220 tok/s/user on Qwen 3.5 397B-A17B — $0.01 per million tokens versus $0.02, a 5% cost-per-token gap.
Push Qwen 3.5 397B-A17B to 305 tok/s/user and B200 lands at $0.04 per million tokens against GB200 NVL72's $0.02 — GB200 NVL72 pulls ahead by 51%. (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): B200 $1.73/chip/hr · GB200 NVL72 $1.86/chip/hr. Source: SemiAnalysis Market July 2026 Pricing Surveys & AI Cloud TCO Model.
View full latency + throughput comparison →
GB200 NVL72 vs B200: full specs & benchmarks across models →
| Metric | Interactivity (tok/s/user) | Interactivity (tok/s/user) | Interactivity (tok/s/user) |
|---|---|---|---|
| Dollar per Million Tokens | B200:$0.009GB200 NVL72:$0.008 | B200:$0.015GB200 NVL72:$0.016 | B200:$0.035GB200 NVL72:$0.023 |
| Concurrency | B200:~21GB200 NVL72:~22 | B200:~22GB200 NVL72:~23 | B200:~10GB200 NVL72:~13 |