DeepSeek V4.1 Flash 552B β H100 vs MI325X Performance per Dollar
Cost per million tokens of H100 (NVIDIA Hopper) versus MI325X (AMD CDNA 3) on DeepSeek V4.1 Flash 552B. Large-hyperscaler-volume ownership TCO normalized by total tokens β 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 β 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 β
Push DeepSeek V4.1 Flash 552B to 63 tok/s/user and H100 lands at $0.02 per million tokens against MI325X's $0.02 β H100 pulls ahead by 8%.
H100: $0.02 per million tokens. MI325X: $0.04. Both at 112 tok/s/user on DeepSeek V4.1 Flash 552B, with H100 104% cheaper.
Toward the upper edge of the 14β209 tok/s/user interactivity band β at 161 tok/s/user β H100 runs $0.03 per million tokens on DeepSeek V4.1 Flash 552B while MI325X runs $0.07. H100 is the cheaper choice by 103%. (Numbers reflect the default agentic-traces Β· fp4 selection for this URL β table and chart below update if you change sequence, precision, or model in the controls.)
Chip pricing (owning hyperscaler): H100 $1.17/chip/hr Β· 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 | H100:$0.016MI325X:$0.018 | H100:$0.018MI325X:$0.037 | H100:$0.035MI325X:$0.071 |
| Concurrency | H100:~24MI325X:~7 | H100:~21MI325X:~2 | H100:~11MI325X:~2 |
Inference Performance
Agentic inference metrics from the AgentX scenario and fixed-sequence inference metrics across models, hardware configurations, and serving parameters.