Recipe
qwen3-8-27b-gptq-int4-draft-int4-rtn-intel-arc-pro-b70-32gb-vllm-tp1
qwen3-8-27b-gptq-int4-draft-int4-rtn-intel-arc-pro-b70-32gb-vllm-tp1Observed LocalMaxxing leaderboard run. Evidence for compatibility, not an executable launch contract.
Record
- Status
- candidate
- Source
- localmaxxing
- Engine
- vllm
- Engine version
- 0.27.2rc1.dev77+gac7509e2b XPU
- Accelerators
- 1
- Tensor parallel
- 1
- Context tokens
- 131,072
- Max concurrency
- 64
- chat
- unknown
- reasoning
- unknown
- tools
- unknown
- vision
- unknown
Hugging Face model card
Identity
https://huggingface.co/Qwen/Qwen3.8-27B- Repository
- Qwen/Qwen3.8-27B
- 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
Observed source tokens
Mechanical split of the source command. Unverified against the engine CLI. The registry does not offer Run for this recipe.
vllmserve/model--quantizationgptq--dtypefloat16--max-model-len131072--gpu-memory-utilization0.88--kv-cache-dtypefp8--max-num-seqs64--max-num-batched-tokens8192--no-enable-prefix-caching--language-model-only--speculative-config{method:mtp,num_speculative_tokens:4}
| Flag | Value |
|---|---|
--quantization | gptq |
--dtype | float16 |
--max-model-len | 131072 |
--gpu-memory-utilization | 0.88 |
--kv-cache-dtype | fp8 |
--max-num-seqs | 64 |
--max-num-batched-tokens | 8192 |
--speculative-config | {method:mtp,num_speculative_tokens:4} |
Environment
| Variable | Value |
|---|---|
B70_DRAFT_LMHEAD_INT4 | 1 |
B70_DRAFT_MTP_INT4 | 1 |
Measured speed
| Concurrency | Context | Prefill | Decode | TTFT ms | Status | Sweep |
|---|---|---|---|---|---|---|
| — | 131,072 | 1,696 | 112.7 | — | observed | qwen3-8-27b-gptq-int4-draft-int4-rtn-intel-arc-pro-b70-32gb-vllm-tp1-sweep |
Remaining fields
Identity, launch, related records, and measured speed are shown above. This is the rest of the normalized record.
- hardware count
- 1
- hardware id
- intel-arc-pro-b70-32gb
- id
- qwen3-8-27b-gptq-int4-draft-int4-rtn-intel-arc-pro-b70-32gb-vllm-tp1
- model instance id
- qwen-qwen3-8-27b--gptq-int4-draft-int4-rtn
- recipe source
- localmaxxing
- schema version
- local-ai-registry/v1
- speed sweep ids
- qwen3-8-27b-gptq-int4-draft-int4-rtn-intel-arc-pro-b70-32gb-vllm-tp1-sweep
- status
- candidate
capabilities
engine
- name
- vllm
- version
- 0.27.2rc1.dev77+gac7509e2b XPU
serving
- max concurrency
- 64
- max context tokens
- 131,072
- tensor parallel
- 1
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
- serving.max concurrency · provenance · captured at
- 2026-09-01T10:20:39Z
serving.max concurrency · reason explicit-source-server-capacity
serving.max concurrency · state known
- serving.max context tokens · provenance · captured at
- 2026-09-01T10:20:39Z
serving.max context tokens · reason explicit-source-context-limit
serving.max context tokens · state known
metadata
- localmaxxing · backend
- xpu
- localmaxxing · batch size
- 1
- localmaxxing · hardware label
- Intel Arc Pro B70
- localmaxxing · notes
- NEW identity vs cmsur82fz06svms01ga1f0z83 (BF16 draft 83.7). Same 1x B70, same image vllm/vllm-openai-xpu@sha256:f01e24f6c7ff01f1e0662234255a1372297d1dbd89d003cf13c8fad3eab1ba4f, kernels 0.1.12.3, same target SergiioB/Qwen3.8-27B-GPTQ-Int4-sym-G128-MTP-BF16. Extra patches after Qwen MTP nightly+boundary: patch_gdn_mixed_split_v5.py + patch_draft_lmhead_int4.py + patch_draft_mtp_int4.py (runtime RTN INT4 of draft LM head + 5 MTP linears only; target verify stays BF16). tokSOut = client post-first at p512/g128, median n=5, C1, cache OFF (zero prefix_cache_hits_total delta): 112.65 (range 111.58-117.73). Matched same-harness BF16-draft arm was 81.20, not the older Run40 83.7 card. tokSPrefill = actual input/TTFT at p8192/g1 MTP4 n=5: 1696 (flat vs 1691). Accept 510/540=94.44% vs 95.86%. Short agentic +32.8%; 8K/16K long-ctx agentic +37%/+26%. 230 W configured cap; measured median draw 205 W at p512/g128. Speed-only: no token/KL/task-quality parity vs BF16 draft. E2 self-reported. Measured 2026-08-18.
- localmaxxing · observed command
- B70_DRAFT_LMHEAD_INT4=1 B70_DRAFT_MTP_INT4=1 vllm serve /model --quantization gptq --dtype float16 --max-model-len 131072 --gpu-memory-utilization 0.88 --kv-cache-dtype fp8 --max-num-seqs 64 --max-num-batched-tokens 8192 --no-enable-prefix-caching --language-model-only --speculative-config {"method":"mtp","num_speculative_tokens":4}
- localmaxxing · run id
- cmszpqy000e8fms014ty6i5x3
- localmaxxing · tokenized · arguments
- vllm, serve, /model, --quantization, gptq, --dtype, float16, --max-model-len, 131072, --gpu-memory-utilization, 0.88, --kv-cache-dtype, fp8, --max-num-seqs, 64, --max-num-batched-tokens, 8192, --no-enable-prefix-caching, --language-model-only, --speculative-config, {method:mtp,num_speculative_tokens:4}
- localmaxxing · tokenized · environment · B70 DRAFT LMHEAD INT4
- 1
- localmaxxing · tokenized · environment · B70 DRAFT MTP INT4
- 1
- localmaxxing · tokenized · fidelity
- faithful
provenance
- captured at
- 2026-08-30T09:10:02Z
sources
| captured at | kind | url |
|---|---|---|
| 2026-08-30T09:10:02Z | normalized-recipe | www.localmaxxing.com/en/runs/cmszpqy000e8fms014ty6i5x3 ↗ |