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NVIDIA H200 SXM 141GB~408 tok/s (Q4)

mlx-community/gpt-oss-20b-MXFP4-Q8 speed on NVIDIA H200 SXM 141GB

Quantization-specific throughput and VRAM requirements for mlx-community/gpt-oss-20b-MXFP4-Q8 running on NVIDIA H200 SXM 141GB.

Speed Snapshot

Topline estimate from compatibility data

Modelmlx-community/gpt-oss-20b-MXFP4-Q8

GPUNVIDIA H200 SXM 141GB

Q4 speed408 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	141GB	408 tok/s	✅ Fits
Q8	20GB	141GB	257 tok/s	✅ Fits
FP16	41GB	141GB	151 tok/s	✅ Fits