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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

GPT-20B:20b

OLLAMA GGUF

gptoss · 20.9B · MXFP4

Good

Aug 19, 2026 · Intel Core™ Ultra X7 358H

Global Score
84 vs 79
Hardware Fit
65 vs 59
Quality Score
92 vs 88

Hardware

openai/gpt-oss-20b GPT-20B:20b
MachineASUSGMKtec NucBox EVO-T2S
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorIntel Core™ Ultra X7 358H
Cores1616
RAM31 GB64 GB
GPUNVIDIA GeForce RTX 4090, RaphaelIntel(R) Arc(TM) B390 GPU
OScachyos rollingMicrosoft Windows 11 Pro 10.0.26200
Archx64x64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b GPT-20B:20b
Tokens/sec221.519.3
First chunk5 ms2004 ms
TTFT30.0 s10.4 s
Load timeN/A10.4 s
Memory usage21.1 GB12.9 GB
Memory %69%20%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

GPT-20B:20b

Speed
26/50
TTFT
3/20
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

GPT-20B:20b

Reasoning
19/20
Coding
18/20
Instruction
11/20
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 GPT-20B:20b details

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