// RUN โ€” FITS

Can the NVIDIA GeForce RTX 5090 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 5090

QuantFits?Max contextSpeedBeyond context
FP16 yes 81k 75.5-90 t/s ~1.7-2 (slow)
Q8 yes 147k 151.1-180 t/s ~3.4-4 (slow)
Q4 yes 176k 269.7-321.5 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 5090 run Mamba2-Hybrid?โ–ถ

Yes. At Q4 it generates ~269.7-321.5 tok/s and fits up to 176k 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 176k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.