// RUN โ€” FITS

Can the NVIDIA L40S 48GB run Mamba2-Hybrid?

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

Mamba2-Hybrid on the NVIDIA L40S 48GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 193k 36.4-43.4 t/s ~1.7-2 (slow)
Q8 yes 259k 72.8-86.8 t/s ~3.4-4 (slow)
Q4 yes 288k 130.1-155 t/s ~6-7.2 (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 L40S 48GB run Mamba2-Hybrid?โ–ถ

Yes. At Q4 it generates ~130.1-155 tok/s and fits up to 288k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~6-7.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 288k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.