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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

qwen3.5:4b

OLLAMA GGUF

qwen35 · 4.7B · Q4_K_M

Excellent

Mar 6, 2026 · AMD RYZEN AI MAX+ 395 w/ Radeon 8060S

Global Score
83 vs 82
Hardware Fit
80 vs 93
Quality Score
84 vs 77

Hardware

openai/gpt-oss-20b qwen3.5:4b
MachineMacBook ProAZW GTR Pro
CPUApple M5 MaxAMD RYZEN AI MAX+ 395 w/ Radeon 8060S
Cores1832
RAM64 GB125 GB
GPUApple M5 MaxIntegrated / Apple Silicon
OSmacOS 27.0Ubuntu 24.04.4 LTS
Archarm64x64
Power Modebalancedperformance

Performance

openai/gpt-oss-20b qwen3.5:4b
Tokens/sec131.746.8
First chunk7 ms174 ms
TTFT30.0 s174 ms
Load timeN/A5.9 s
Memory usage15.8 GB16.2 GB
Memory %25%13%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3.5:4b

Speed
43/50
TTFT
20/20
Memory
30/30

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

qwen3.5:4b

Reasoning
15/20
Coding
14/20
Instruction
16/20
Structured
15/15
Math
8/15
Multilingual
9/10
Reasoning: Strong Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Adequate Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.5:4b details

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