// RUN โ€” FITS

Can the AMD Radeon RX 6800 XT run BART-large?

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

BART-large on the AMD Radeon RX 6800 XT

QuantFits?Max contextSpeedBeyond context
FP16 yes 189k 397-485.2 t/s ~31-37.9 (slow)
Q8 yes 196k 793.9-970.3 t/s ~62-75.8 (slow)
Q4 yes 198k 1417.7-1732.7 t/s ~110.8-135.4 (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 AMD Radeon RX 6800 XT run BART-large?โ–ถ

Yes. At Q4 it generates ~1417.7-1732.7 tok/s and fits up to 198k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~110.8-135.4 tok/s.

How much context fits?โ–ถ

At Q4, up to about 198k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.