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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

qwen/qwen3.8-27b

LM-STUDIO MLX

qwen3_5 · 27B · 4bit

Excellent

Aug 19, 2026 · Apple M4 Max

Global Score
84 vs 83
Hardware Fit
65 vs 68
Quality Score
92 vs 90

Hardware

openai/gpt-oss-20b qwen/qwen3.8-27b
MachineASUSMacBook Pro
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorApple M4 Max
Cores1616
RAM31 GB128 GB
GPUNVIDIA GeForce RTX 4090, RaphaelApple M4 Max
OScachyos rollingmacOS 26.5.2
Archx64arm64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b qwen/qwen3.8-27b
Tokens/sec221.527.6
First chunk5 ms10 ms
TTFT30.0 s4.6 s
Load timeN/AN/A
Memory usage21.1 GB21.0 GB
Memory %69%16%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen/qwen3.8-27b

Speed
32/50
TTFT
6/20
Memory
30/30

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

qwen/qwen3.8-27b

Reasoning
19/20
Coding
15/20
Instruction
16/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen/qwen3.8-27b details

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