// RUN โ€” FITS

Can the NVIDIA GeForce RTX 5090 run SANA 1.6B?

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

SANA 1.6B on the NVIDIA GeForce RTX 5090

QuantFits?Max contextSpeedBeyond context
FP16 yes 376k 396.9-473 t/s ~8.9-10.6 (slow)
Q8 yes 401k 793.8-946 t/s ~17.7-21.1 (slow)
Q4 yes 412k 1417.5-1689.3 t/s ~31.6-37.7 (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 SANA 1.6B?โ–ถ

Yes. At Q4 it generates ~1417.5-1689.3 tok/s and fits up to 412k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~31.6-37.7 tok/s.

How much context fits?โ–ถ

At Q4, up to about 412k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.