// RUN โ€” FITS

Can the NVIDIA GeForce RTX 4090 run DiffusionGemma 26B-A4B?

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

DiffusionGemma 26B-A4B on the NVIDIA GeForce RTX 4090

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 no โ€” โ€” โ€”
Q4 yes 23k 50.5-60.2 t/s ~2-2.4 (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 DiffusionGemma 26B-A4B?โ–ถ

Yes. At Q4 it generates ~50.5-60.2 tok/s and fits up to 23k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2-2.4 tok/s.

How much context fits?โ–ถ

At Q4, up to about 23k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.