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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

gemma3:4b

OLLAMA GGUF

gemma3 · 4.3B · Q4_K_M

Good

Jun 26, 2026 · Cortex-A78AE

Global Score
84 vs 76
Hardware Fit
65 vs 92
Quality Score
92 vs 69

Hardware

openai/gpt-oss-20b gemma3:4b
MachineASUSNVIDIA NVIDIA Jetson Orin Nano Engineering Reference Developer Kit Super
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorCortex-A78AE
Cores166
RAM31 GB7 GB
GPUNVIDIA GeForce RTX 4090, RaphaelIntegrated / Unknown
OScachyos rollingUbuntu 22.04.5 LTS
Archx64arm64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b gemma3:4b
Tokens/sec221.515.0
First chunk5 ms2380 ms
TTFT30.0 s2.4 s
Load timeN/A13.6 s
Memory usage21.1 GB2.6 GB
Memory %69%35%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

gemma3:4b

Speed
45/50
TTFT
18/20
Memory
29/30

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

gemma3:4b

Reasoning
11/20
Coding
17/20
Instruction
13/20
Structured
14/15
Math
4/15
Multilingual
10/10
Reasoning: Adequate Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Weak 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