// RUN โ€” FITS

Can the NVIDIA H100 SXM5 80GB run Phi-3.5-MoE?

Yes โ€” here's how fast and up to what context, with real measured numbers.

Phi-3.5-MoE on the NVIDIA H100 SXM5 80GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 34k 40.2-47.9 t/s ~0.5-0.6 (slow)
Q4 yes 116k 71.8-85.6 t/s ~0.9-1 (slow)

Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.

FAQ

Can the NVIDIA H100 SXM5 80GB run Phi-3.5-MoE?โ–ถ

Yes. At Q4 it generates ~71.8-85.6 tok/s and fits up to 116k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.9-1 tok/s.

How much context fits?โ–ถ

At Q4, up to about 116k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.