Qwen 3.5 397B-A17B · Performance per dollar
Qwen 3.5 397B-A17B — B300 vs GB300 NVL72 performance per dollar
Cost per million tokens of B300 (NVIDIA Blackwell) versus GB300 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 →
Push Qwen 3.5 397B-A17B to 148 tok/s/user and B300 lands at $0.018 per million tokens against GB300 NVL72's $0.011 — GB300 NVL72 pulls ahead by 65%.
B300: $0.034 per million tokens. GB300 NVL72: $0.021. Both at 228 tok/s/user on Qwen 3.5 397B-A17B, with GB300 NVL72 67% cheaper.
Toward the upper edge of the 68–389 tok/s/user interactivity band — at 309 tok/s/user — B300 runs $0.071 per million tokens on Qwen 3.5 397B-A17B while GB300 NVL72 runs $0.028. GB300 NVL72 is the cheaper choice by 156%. (Numbers reflect the default agentic-traces · fp8 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 · GB300 NVL72 $2.31/chip/hr. Source: SemiAnalysis Market July 2026 Pricing Surveys & AI Cloud TCO Model.
View full latency and throughput comparison →
GB300 NVL72 vs B300: full specs & benchmarks across models →
Interpolated from real benchmark data. Edit target interactivity values below to compare at different operating points.
| Metric | Interactivity (tok/s/user) | Interactivity (tok/s/user) | Interactivity (tok/s/user) |
|---|---|---|---|
| Dollars per million tokens | B300$0.018GB300 NVL72$0.011 | B300$0.034GB300 NVL72$0.021 | B300$0.071GB300 NVL72$0.028 |
| Concurrency | B300~26GB300 NVL72~358 | B300~26GB300 NVL72~148 | B300~12GB300 NVL72~105 |