// RUN โ€” FITS

Can the NVIDIA GeForce RTX 4070 Super run GPT-J-6B?

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

GPT-J-6B on the NVIDIA GeForce RTX 4070 Super

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 27k 60.8-72.4 t/s ~4.8-5.7 (slow)
Q4 yes 47k 108.5-129.3 t/s ~8.6-10.3 (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 Super run GPT-J-6B?โ–ถ

Yes. At Q4 it generates ~108.5-129.3 tok/s and fits up to 47k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~8.6-10.3 tok/s.

How much context fits?โ–ถ

At Q4, up to about 47k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.