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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

gemma3:4b

OLLAMA GGUF

gemma3 · 4.3B · Q4_K_M

Marginal

Jun 25, 2026 · Cortex-A78AE

Global Score
83 vs 46
Hardware Fit
80 vs 93
Quality Score
84 vs 26

Hardware

openai/gpt-oss-20b gemma3:4b
MachineMacBook ProNVIDIA NVIDIA Jetson Orin Nano Engineering Reference Developer Kit Super
CPUApple M5 MaxCortex-A78AE
Cores186
RAM64 GB7 GB
GPUApple M5 MaxIntegrated / Unknown
OSmacOS 27.0Ubuntu 22.04.5 LTS
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b gemma3:4b
Tokens/sec131.714.9
First chunk7 ms2204 ms
TTFT30.0 s2.2 s
Load timeN/A2.0 s
Memory usage15.8 GB2.6 GB
Memory %25%35%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

gemma3:4b

Speed
45/50
TTFT
19/20
Memory
29/30

Quality

openai/gpt-oss-20b

Reasoning
18/20
Coding
13/20
Instruction
14/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong

gemma3:4b

Reasoning
11/20
Coding
11/20
Instruction
0/20
Structured
0/15
Math
4/15
Multilingual
0/10
Reasoning: Adequate Coding: Adequate Instruction Following: Poor Structured Output: Poor Math: Weak Multilingual: Poor

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