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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Not Rec.

Jul 5, 2026 · AMD Ryzen 7 7800X3D 8-Core Processor

qwen3.5:9b

OLLAMA GGUF

qwen35 · 9.7B · Q4_K_M

Good

Mar 7, 2026 · AMD Ryzen 5 5500

Global Score
84 vs 71
Hardware Fit
65 vs 56
Quality Score
92 vs 78

Hardware

openai/gpt-oss-20b qwen3.5:9b
MachineASUSSystem manufacturer
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorAMD Ryzen 5 5500
Cores1612
RAM31 GB16 GB
GPUNVIDIA GeForce RTX 4090, RaphaelNVIDIA GeForce RTX 3060
OScachyos rollingMicrosoft Windows 11 IoT Enterprise LTSC 10.0.26100
Archx64x64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b qwen3.5:9b
Tokens/sec221.55.3
First chunk5 ms1624 ms
TTFT30.0 s1.6 s
Load timeN/A4.0 s
Memory usage21.1 GB7.9 GB
Memory %69%50%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
0/20
Memory
15/30

qwen3.5:9b

Speed
11/50
TTFT
20/20
Memory
25/30

Quality

openai/gpt-oss-20b

Reasoning
19/20
Coding
15/20
Instruction
18/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

qwen3.5:9b

Reasoning
14/20
Coding
17/20
Instruction
12/20
Structured
15/15
Math
10/15
Multilingual
10/10
Reasoning: Adequate Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Adequate Multilingual: Strong

Run yours and compare

$ npm install -g metrillm@latest
$ metrillm

Requires Node 20+ and Ollama or LM Studio running

Or run without installing: npx metrillm@latest