LLM Inference Benchmark Explorer
DeepSeek-V3.1 on DGX B300 — NVFP4, vLLM, TP2 inference benchmark
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| Model | DeepSeek-V3.1 |
|---|---|
| Parameters | 685B |
| Intelligence Index | 13.7 |
| Agentic Index | — |
| Device | DGX B300 |
| Quantization | NVFP4 |
| Max C | 32+ |
| Chat Capacity | 68 |
| Agentic Capacity | 17 |
| TP | 2 |
| DP | — |
| PP | — |
| Engine | vLLM |
| Speculative Decoding | — |
| C | TTFT (ms) | TPS (tok/s) | Status |
|---|---|---|---|
| 1 | 140 | 108.59 | PASS |
| 2 | 291 | 90.52 | PASS |
| 4 | 288 | 85.63 | PASS |
| 8 | 287 | 79.59 | PASS |
| 16 | 299 | 70.96 | PASS |
| 32 | 353 | 62.21 | PASS |
In OpenZeka's measurement, DeepSeek-V3.1 (685B parameters), served in NVFP4 format with vLLM on DGX B300 (TP=2), reached a generation speed of 108.6 tok/s per request and a time to first token (TTFT) of 140 ms with a single request.
Considering the speed targets and the available KV cache capacity, the estimated capacity is 68 users for chat use and 17 for agentic use. The realistic capacity will likely fall between these two values. In scenarios dominated by coding, tool use, long workflows and multi-agent use, capacity approaches the agentic estimate; where shorter interactions, standard conversations and lighter tasks dominate, it approaches the chat estimate.
Intelligence Index and Agentic Index values are published by Artificial Analysis and are reproduced here with attribution.
In OpenZeka's measurement, DeepSeek-V3.1 (685B parameters), served in NVFP4 format with vLLM on DGX B300 (TP=2), reached a generation speed of 108.6 tok/s per request and a time to first token (TTFT) of 140 ms with a single request.
Considering the speed targets and the available KV cache capacity, the estimated capacity is 68 users for chat use and 17 for agentic use. The realistic capacity will likely fall between these two values. In scenarios dominated by coding, tool use, long workflows and multi-agent use, capacity approaches the agentic estimate; where shorter interactions, standard conversations and lighter tasks dominate, it approaches the chat estimate.