Recipe
qwen3-8-27b-q4-k-xl-rx-7900-xtx-24gb-llama-cpp-tp1
qwen3-8-27b-q4-k-xl-rx-7900-xtx-24gb-llama-cpp-tp1Observed LocalMaxxing leaderboard run. Evidence for compatibility, not an executable launch contract.
Record
- Status
- candidate
- Source
- localmaxxing
- Engine
- llama.cpp
- Engine version
- 9731ad3
- Accelerators
- 1
- Tensor parallel
- 1
- Context tokens
- 32,768
- Max concurrency
- 1
- 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
llama.cpp
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.
llama-server-mQwen3.8-27B-UD-Q4_K_XL.gguf--deviceVulkan0-c32768-ngl999-faon--cache-type-kq4_0--cache-type-vq4_0--spec-typedraft-mtp--spec-draft-n-max3--spec-draft-type-kq4_0--spec-draft-type-vq4_0--parallel1--no-mmproj--jinja--reasoning-budget0--aliasqwen38-27b-src
| Flag | Value |
|---|---|
-m | Qwen3.8-27B-UD-Q4_K_XL.gguf |
--device | Vulkan0 |
-c | 32768 |
-ngl | 999 |
-fa | on |
--cache-type-k | q4_0 |
--cache-type-v | q4_0 |
--spec-type | draft-mtp |
--spec-draft-n-max | 3 |
--spec-draft-type-k | q4_0 |
--spec-draft-type-v | q4_0 |
--parallel | 1 |
--reasoning-budget | 0 |
--alias | qwen38-27b-src |
Environment
| Variable | Value |
|---|---|
GGML_VK_ALLOW_GRAPHICS_QUEUE | 1 |
GGML_VK_VISIBLE_DEVICES | 0 |
Measured speed
| Concurrency | Context | Prefill | Decode | TTFT ms | Status | Sweep |
|---|---|---|---|---|---|---|
| 1 | 32,768 | 326.5 | 90.7 | 101.7 | observed | qwen3-8-27b-q4-k-xl-rx-7900-xtx-24gb-llama-cpp-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
- rx-7900-xtx-24gb
- id
- qwen3-8-27b-q4-k-xl-rx-7900-xtx-24gb-llama-cpp-tp1
- model instance id
- qwen-qwen3-8-27b--q4-k-xl
- recipe source
- localmaxxing
- schema version
- local-ai-registry/v1
- speed sweep ids
- qwen3-8-27b-q4-k-xl-rx-7900-xtx-24gb-llama-cpp-tp1-sweep
- status
- candidate
capabilities
engine
- name
- llama.cpp
- version
- 9731ad3
serving
- max concurrency
- 1
- max context tokens
- 32,768
- 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
- 2026-08-31T23:03:15Z
serving.max concurrency · reason server-capacity-derived-from-source-evidence
serving.max concurrency · state known
metadata
- localmaxxing · backend
- vulkan
- localmaxxing · batch size
- 1
- localmaxxing · hardware label
- RX 7900 XTX
- localmaxxing · notes
- Record decode on Windows 11 Pro + official AMD Vulkan ICD (not RADV). llama.cpp master 9731ad3 build-vulkan llama-server, Unsloth Qwen3.8-27B-UD-Q4_K_XL, native MTP n-max 3 (no p-min), -fa on, q4_0 KV, GGML_VK_ALLOW_GRAPHICS_QUEUE=1. Measured with bench_src.py on a 32k slot: code decode mean 90.74 tok/s (3 runs, 11.04 ms/tok), prose 64.99, mixed 77.81, prefill 326.5 tok/s, TTFT 101.7 ms, dedicated VRAM 17.48 GiB. Daily serve is the same stack at 100k (88.4 code / 62.3 prose). 128k and 132k lose hard on code decode and were not submitted.
- localmaxxing · observed command
- GGML_VK_VISIBLE_DEVICES=0 GGML_VK_ALLOW_GRAPHICS_QUEUE=1 llama-server -m Qwen3.8-27B-UD-Q4_K_XL.gguf --device Vulkan0 -c 32768 -ngl 999 -fa on --cache-type-k q4_0 --cache-type-v q4_0 --spec-type draft-mtp --spec-draft-n-max 3 --spec-draft-type-k q4_0 --spec-draft-type-v q4_0 --parallel 1 --no-mmproj --jinja --reasoning-budget 0 --alias qwen38-27b-src
- localmaxxing · run id
- cmt00amga0eeums015vw8ttp3
- localmaxxing · tokenized · arguments
- llama-server, -m, Qwen3.8-27B-UD-Q4_K_XL.gguf, --device, Vulkan0, -c, 32768, -ngl, 999, -fa, on, --cache-type-k, q4_0, --cache-type-v, q4_0, --spec-type, draft-mtp, --spec-draft-n-max, 3, --spec-draft-type-k, q4_0, --spec-draft-type-v, q4_0, --parallel, 1, --no-mmproj, --jinja, --reasoning-budget, 0, --alias, qwen38-27b-src
- localmaxxing · tokenized · environment · GGML VK ALLOW GRAPHICS QUEUE
- 1
- localmaxxing · tokenized · environment · GGML VK VISIBLE DEVICES
- 0
- 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/cmt00amga0eeums015vw8ttp3 ↗ |