NVIDIA H200 SXM 141GB~78 tok/s (Q4)

stepfun-ai/Step-3.5-Flash speed on NVIDIA H200 SXM 141GB

Quantization-specific throughput and VRAM requirements for stepfun-ai/Step-3.5-Flash running on NVIDIA H200 SXM 141GB.

Speed Snapshot

Topline estimate from compatibility data

Modelstepfun-ai/Step-3.5-Flash

GPUNVIDIA H200 SXM 141GB

Q4 speed78 tok/s

Q4 VRAM required112GB

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	112GB	141GB	78 tok/s	✅ Fits
Q8	223GB	141GB	60 tok/s	❌ Not recommended
FP16	446GB	141GB	32 tok/s	❌ Not recommended