// RUN โ€” FITS

Can the AMD Radeon RX 7900 XT run ByT5-XXL?

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

ByT5-XXL on the AMD Radeon RX 7900 XT

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 24k 39.1-47.8 t/s ~2-2.4 (slow)
Q4 yes 59k 69.8-85.3 t/s ~3.5-4.3 (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 AMD Radeon RX 7900 XT run ByT5-XXL?โ–ถ

Yes. At Q4 it generates ~69.8-85.3 tok/s and fits up to 59k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~3.5-4.3 tok/s.

How much context fits?โ–ถ

At Q4, up to about 59k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.