Apple M2 Max~28 tok/s (Q4)

openai/gpt-oss-20b speed on Apple M2 Max

Quantization-specific throughput and VRAM requirements for openai/gpt-oss-20b running on Apple M2 Max.

Speed Snapshot

Topline estimate from compatibility data

Modelopenai/gpt-oss-20b

GPUApple M2 Max

Q4 speed28 tok/s

Q4 VRAM required10GB

Data Source

Calculation and benchmark status

Speed values come from the compatibility dataset (`estimatedTokensPerSec`) and are sorted by quantization.

For full verdict logic and alternate GPUs, see the canonical compatibility page.

Quantization Speed Table

Quantization	VRAM needed	VRAM available	Speed	Verdict
Q4	10GB	96GB	28 tok/s	✅ Fits
Q8	20GB	96GB	20 tok/s	✅ Fits
FP16	41GB	96GB	12 tok/s	✅ Fits