Recipe

qwen3-6-27b-fp8-rtx-3090-ti-24gb-vllm-tp2-f8a8wm4k

qwen3-6-27b-fp8-rtx-3090-ti-24gb-vllm-tp2-f8a8wm4k

Observed LocalMaxxing leaderboard run. Evidence for compatibility, not an executable launch contract.

Record

Status
candidate
Source
localmaxxing
Engine
vllm
Engine version
0.19.1 + MTP n=3
Accelerators
2
Tensor parallel
2
Context tokens
131,072
Max concurrency
1
chat
unknown
reasoning
unknown
tools
unknown
vision
unknown

Hugging Face model card

Identity

https://huggingface.co/Qwen/Qwen3.6-27B-FP8
Repository
Qwen/Qwen3.6-27B-FP8
Status
known
Link type
Exact Hub repository

Public Hugging Face repository confirmed by the Hub API.

Candidate: useful compatibility or speed evidence. The registry does not offer Run until promotion requirements are met.

Observed configuration

vllm

Evidence only · candidate · reference

Candidate evidence — not a Run contract

Source
https://www.localmaxxing.com/en/runs/cmogs42490005lb04f8a8wm4k

Observed source tokens

Mechanical split of the source command. Unverified against the engine CLI. The registry does not offer Run for this recipe.

  1. vllm
  2. serve
  3. Qwen3.6-27B-FP8
  4. --tensor-parallel-size
  5. 2
  6. --gpu-memory-utilization
  7. 0.88
  8. --max-model-len
  9. 131072
  10. --max-num-seqs
  11. 2
  12. --kv-cache-dtype
  13. fp8
  14. --enable-prefix-caching
  15. --enable-auto-tool-choice
  16. --tool-call-parser
  17. qwen3_coder
  18. --reasoning-parser
  19. qwen3
  20. --speculative-config
  21. {"method":"mtp","num_speculative_tokens":3}
FlagValue
--tensor-parallel-size2
--gpu-memory-utilization0.88
--max-model-len131072
--max-num-seqs2
--kv-cache-dtypefp8
--tool-call-parserqwen3_coder
--reasoning-parserqwen3
--speculative-config{"method":"mtp","num_speculative_tokens":3}

Measured speed

ConcurrencyContextPrefillDecodeTTFT msStatusSweep
1131,07270.3465.4observedqwen3-6-27b-fp8-rtx-3090-ti-24gb-vllm-tp2-f8a8wm4k-sweep

Remaining fields

Identity, launch, related records, and measured speed are shown above. This is the rest of the normalized record.

hardware count
2
hardware id
rtx-3090-ti-24gb
id
qwen3-6-27b-fp8-rtx-3090-ti-24gb-vllm-tp2-f8a8wm4k
model instance id
qwen-qwen3-6-27b-fp8--fp8
recipe source
localmaxxing
schema version
local-ai-registry/v1
speed sweep ids
qwen3-6-27b-fp8-rtx-3090-ti-24gb-vllm-tp2-f8a8wm4k-sweep
status
candidate

capabilities

draft launch

accelerator backend
nvidia
arguments
--model, Qwen/Qwen3.6-27B-FP8, --tensor-parallel-size, 2, --host, 0.0.0.0, --port, 8000, --max-model-len, 131072
container port
8,000
host port
8,000
image
vllm/vllm-openai@sha256:0a51ea5b4ae2dc5d81890e5173f54203d2a3ae0cfffe51b8fd2afd4391bfd967
ipc
host
kind
docker
shm size
16g
synthesized · generated at
2026-08-31T22:12:17Z
synthesized · image provenance
deepseek-fp8-rtx-pro-6000-blackwell-96gb-vllm-tp1
synthesized · template
vllm-openai-v1

mounts

read onlytarget
No/root/.cache/huggingface

engine

name
vllm
version
0.19.1 + MTP n=3

serving

max concurrency
1
max context tokens
131,072
tensor parallel
2
Provenance & metadata (3)

facts

capabilities.chat · provenance · captured at
2026-08-30T09:10:02Z
capabilities.chat · reason capability-not-verified
capabilities.chat · state unknown
capabilities.reasoning · provenance · captured at
2026-08-30T09:10:02Z
capabilities.reasoning · reason capability-not-verified
capabilities.reasoning · state unknown
capabilities.tools · provenance · captured at
2026-08-30T09:10:02Z
capabilities.tools · reason capability-not-verified
capabilities.tools · state unknown
capabilities.vision · provenance · captured at
2026-08-30T09:10:02Z
capabilities.vision · reason capability-not-verified
capabilities.vision · state unknown
engine.graph mode · provenance · captured at
2026-08-30T09:10:02Z
engine.graph mode · reason runtime-detail-not-published
engine.graph mode · state unknown
serving.kv cache tokens · provenance · captured at
2026-08-30T09:10:02Z
serving.kv cache tokens · reason kv-cache-capacity-not-published
serving.kv cache tokens · state unknown

metadata

localmaxxing · backend
cuda
localmaxxing · hardware label
RTX 3090 Ti
localmaxxing · notes
Qwen 3.6 27B FP8 dense + MTP n=3 speculative decoding (FP8 weights ship native mtp.layers.0.* — verified 2026-04-27, mtp_num_hidden_layers=1 in text_config). vLLM 0.19.1 --speculative-config '{"method":"mtp","num_speculative_tokens":3}'. Dual RTX 3090 (Ti slot 1 Gen4 x16 + Dell slot 2 Gen4 x4, hardware-detected as same gpuName for dedupe). Bench: vllm bench serve openai-chat random 512/512 num-prompts 20 concurrency 1 --ignore-eos --extra-body chat_template_kwargs.enable_thinking=false. MTP acceptance 55.02% / avg length 2.65 / per-position P0=75%/P1=54%/P2=36%. TPOT 13.34 ms. **1.59× output throughput vs prior FP8 single-stream (44.17 t/s, no spec decode)**, zero quality cost (same FP8 weights, just MTP draft path). Tool calls verified working (qwen3_coder parser + qwen3 reasoning parser). Thinking-off is the production default — bench verified that thinking-on causes 'silent finish' (model exhausts max_tokens drafting in reasoning channel without emitting visible content) on 5/6 prompt categories.
localmaxxing · observed command
vllm serve Qwen3.6-27B-FP8 --tensor-parallel-size 2 --gpu-memory-utilization 0.88 --max-model-len 131072 --max-num-seqs 2 --kv-cache-dtype fp8 --enable-prefix-caching --enable-auto-tool-choice --tool-call-parser qwen3_coder --reasoning-parser qwen3 --speculative-config '{"method":"mtp","num_speculative_tokens":3}'
localmaxxing · run id
cmogs42490005lb04f8a8wm4k
localmaxxing · tokenized · arguments
vllm, serve, Qwen3.6-27B-FP8, --tensor-parallel-size, 2, --gpu-memory-utilization, 0.88, --max-model-len, 131072, --max-num-seqs, 2, --kv-cache-dtype, fp8, --enable-prefix-caching, --enable-auto-tool-choice, --tool-call-parser, qwen3_coder, --reasoning-parser, qwen3, --speculative-config, {"method":"mtp","num_speculative_tokens":3}
localmaxxing · tokenized · fidelity
faithful

provenance

captured at
2026-08-30T09:10:02Z

sources

captured atkindurl
2026-08-30T09:10:02Znormalized-recipewww.localmaxxing.com/en/runs/cmogs42490005lb04f8a8wm4k