// RUN โ€” FITS

Can the NVIDIA GeForce RTX 4090 run Spec-Drafter?

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

Spec-Drafter on the NVIDIA GeForce RTX 4090

QuantFits?Max contextSpeedBeyond context
FP16 yes 299k 735.8-877 t/s ~29.2-34.8 (slow)
Q8 yes 306k 1471.7-1753.9 t/s ~58.4-69.6 (slow)
Q4 yes 310k 2628-3132 t/s ~104.3-124.3 (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 4090 run Spec-Drafter?โ–ถ

Yes. At Q4 it generates ~2628-3132 tok/s and fits up to 310k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~104.3-124.3 tok/s.

How much context fits?โ–ถ

At Q4, up to about 310k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.