// RUN โ€” FITS

Can the NVIDIA GeForce RTX 4080 run Mamba2-Hybrid?

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

Mamba2-Hybrid on the NVIDIA GeForce RTX 4080

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 35k 62-73.9 t/s ~3.4-4 (slow)
Q4 yes 64k 110.8-132 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 GeForce RTX 4080 run Mamba2-Hybrid?โ–ถ

Yes. At Q4 it generates ~110.8-132 tok/s and fits up to 64k 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 64k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.