qwen3.5:4b-mlx

OLLAMA GGUF

nvfp4

Good

Aug 25, 2026 · Apple M1 Pro

GPT-20B:20b

OLLAMA GGUF

gptoss · 20.9B · MXFP4

Excellent

Aug 22, 2026 · NVIDIA RTX Spark N1X (6144-core GPU, 20-core ) RTX Spark N1X (6144-core GPU, 20-core )

Global Score

68 vs 93

Hardware Fit

91 vs 91

Quality Score

58 vs 94

Hardware

qwen3.5:4b-mlx GPT-20B:20b

MachineMacBook ProHP HyperX OMEN Transcend Gaming Laptop 14-ga0xxx5CD612DXML

CPUApple M1 ProNVIDIA RTX Spark N1X (6144-core GPU, 20-core ) RTX Spark N1X (6144-core GPU, 20-core )

Cores1020

RAM16 GB55 GB

GPUApple M1 ProNVIDIA RTX Spark N1X (6144-core Blackwell RTX GPU), NVIDIA NPU

OSmacOS 26.6.2Microsoft Windows 11 Pro 10.0.28000

Archarm64arm64

Power Modebalancedbalanced

Performance

qwen3.5:4b-mlx GPT-20B:20b

Tokens/sec42.257.8

First chunk201 ms203 ms

TTFT4.4 s3.0 s

Load time0.0 s19.2 s

Memory usage3.8 GB12.0 GB

Memory %24%22%

HW Fit Score Breakdown

qwen3.5:4b-mlx

Speed

50/50

TTFT

11/20

Memory

30/30

GPT-20B:20b

Speed

50/50

TTFT

11/20

Memory

30/30

Quality

qwen3.5:4b-mlx

Reasoning

16/20

Coding

2/20

Instruction

13/20

Structured

7/15

Math

11/15

Multilingual

9/10

Reasoning: Strong Coding: Poor Instruction Following: Adequate Structured Output: Weak Math: Adequate Multilingual: Strong

GPT-20B:20b

Reasoning

19/20

Coding

17/20

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

View qwen3.5:4b-mlx details | View GPT-20B:20b details

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