// RUN โ€” FITS

Can the NVIDIA GeForce RTX 4070 Ti Super run ERNIE-4.5-21B-A3B?

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

ERNIE-4.5-21B-A3B on the NVIDIA GeForce RTX 4070 Ti Super

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 no โ€” โ€” โ€”
Q4 yes 6k 41.7-49.7 t/s ~2.5-3 (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 4070 Ti Super run ERNIE-4.5-21B-A3B?โ–ถ

Yes. At Q4 it generates ~41.7-49.7 tok/s and fits up to 6k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2.5-3 tok/s.

How much context fits?โ–ถ

At Q4, up to about 6k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.