// RUN โ€” FITS

Can the NVIDIA GeForce RTX 3090 Ti run Qwen3-8B?

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

Qwen3-8B on the NVIDIA GeForce RTX 3090 Ti

QuantFits?Max contextSpeedBeyond context
FP16 yes 32k 44.9-53.5 t/s ~1.8-2.1 (slow)
Q8 yes 94k 89.7-106.9 t/s ~3.6-4.2 (slow)
Q4 yes 122k 160.2-191 t/s ~6.4-7.6 (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 3090 Ti run Qwen3-8B?โ–ถ

Yes. At Q4 it generates ~160.2-191 tok/s and fits up to 122k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~6.4-7.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 122k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.