inference/research
verifiedlow · 0.60updated 2026-10-17

A40 vLLM: Qwen/Qwen2.5-14B-Instruct median TTFT, 50 concurrent

1434.29 ms (median time to first token, 50 concurrent)

Fields

id
benchmarks/dm-a40-vllm-qwen25-14b-instruct-c50-ttft
Metric
ttft_ms
Value
1,434.29
Unit
ms (median time to first token, 50 concurrent)
Model
qwen2.5-14b-instruct
Methodology
Database Mart vLLM bench on one NVIDIA A40 48 GB GDDR6. Model Qwen/Qwen2.5-14B-Instruct, quantization column '16' (bf16/fp16 not distinguished; format_id null, no fp16 record exists). vLLM commit not printed. Single GPU, tensor parallel 1. 50 requests, input length 100 tokens, output length 600 tokens, benchmark duration 47.58 s, total input tokens 5000, total generated tokens 25213. AGGREGATE across the concurrent requests, not a per-request decode rate.
Measured by
third_party
Reproducible
yes
notes
Median TTFT. The page reports the card reaching 80 C+ under these loads; no watt figure is printed.

Notes

Median TTFT. The page reports the card reaching 80 C+ under these loads; no watt figure is printed.

Cross-references