Model benchmarks

Qwen3.8-27B-Q4_K_S local LLM performance

As of September 2026, Qwen3.8-27B-Q4_K_S runs at up to 39.8 tok/s for local inference (best of 3 community benchmark runs across 1 GPU).

llama.cppQ4_K_S
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Model size

27B

Peak speed

39.8 tok/s

Average speed

36.1 tok/s

Avg PP

348.4 tok/s

Min memory

n/a

Max context

180,224 tokens

Avg output / run

12,607 tokens

Avg runtime / run

5m 49s

Avg quality

79.5

Benchmark runs

3

GPUs tested

1

Quality by task

Average LLM-judged quality (0–100) with the run-to-run spread shown as a P5–P95 band, overall and for each benchmark task, across all 3 runs. The low and high columns show how much the judge’s score varies between runs, and need at least two runs to display.

TaskP5 (low)AvgP95 (high)
Overall73.979.583.1
Agent Workflow75.577.981.0
Code Generation57.469.277.7
Role Play & Narrative77.185.791.5
Research & Analysis83.185.387.4

Performance by hardware and tool

Every hardware/tool/quantization combination Qwen3.8-27B-Q4_K_S has been benchmarked on, ranked by peak token generation speed. Last updated September 2026.

HardwareToolQuantBest tok/sAvg tok/sMemoryContextQualityRuns
AMD Radeon RX 6700/6700 XT/6750 XT / 6800M/6850M XTllama.cppQ4_K_S39.8 tok/s36.1 tok/sn/a180,224 tokens79.53

Benchmark runs

All 3 Qwen3.8-27B-Q4_K_S runs submitted so far — expand one for its hardware, quality breakdown and per-scenario detail.

Frequently asked questions

Is Qwen3.8-27B-Q4_K_S good for coding?
In our benchmarks, Qwen3.8-27B-Q4_K_S scores 69.2/100 for coding. It runs at about 36.1 tok/s, so if you want more speed, local-qwen is faster (~60.2 tok/s) and still scores well for coding (84.8/100).
Is Qwen3.8-27B-Q4_K_S good for agentic (tool-using) tasks?
In our benchmarks, Qwen3.8-27B-Q4_K_S scores 77.9/100 for agentic workflows. It runs at about 36.1 tok/s, so if you want more speed, granite-4.2-8b-Q4_K_L is faster (~71.6 tok/s) and still scores well for agentic workflows (92.9/100).
How fast is Qwen3.8-27B-Q4_K_S for local inference?
Across 3 community benchmark runs, Qwen3.8-27B-Q4_K_S reaches up to 39.8 tok/s and averages 36.1 tok/s, with the fastest results on AMD Radeon RX 6700/6700 XT/6750 XT / 6800M/6850M XT.
Which tools have been used to run Qwen3.8-27B-Q4_K_S?
Benchmarks were submitted using llama.cpp. Results are community-contributed and updated as new runs arrive.