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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

qwen3.8:27b

OLLAMA GGUF

qwen35 · 27.3B · Q4_K_M

Excellent

Oct 3, 2026 · Cortex-X925

Global Score
84 vs 84
Hardware Fit
65 vs 66
Quality Score
92 vs 92

Hardware

openai/gpt-oss-20b qwen3.8:27b
MachineASUSNVIDIA NVIDIA_DGX_Spark
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorCortex-X925
Cores1620
RAM31 GB122 GB
GPUNVIDIA GeForce RTX 4090, RaphaelDevice 2e12
OScachyos rollingUbuntu 24.04.5 LTS
Archx64arm64
Power Modeperformanceperformance

Performance

openai/gpt-oss-20b qwen3.8:27b
Tokens/sec221.529.4
First chunk5 ms306 ms
TTFT30.0 s4.8 s
Load timeN/A5.3 s
Memory usage21.1 GB16.2 GB
Memory %69%13%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3.8:27b

Speed
31/50
TTFT
5/20
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

qwen3.8:27b

Reasoning
19/20
Coding
19/20
Instruction
14/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.8:27b details

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