// RUN โ€” FITS

Can the AMD Radeon Pro W7900 48GB run Gemma 4 12B?

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

Gemma 4 12B on the AMD Radeon Pro W7900 48GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 114k 22.7-27.7 t/s ~1.1-1.3 (slow)
Q8 yes 187k 45.4-55.4 t/s ~2.1-2.6 (slow)
Q4 yes 219k 81-99 t/s ~3.8-4.6 (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 AMD Radeon Pro W7900 48GB run Gemma 4 12B?โ–ถ

Yes. At Q4 it generates ~81-99 tok/s and fits up to 219k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~3.8-4.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 219k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.