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// RUN — FITS
Can the NVIDIA RTX PRO 6000 Blackwell run GPT-J-6B?
Yes — here's how fast and up to what context, with real measured numbers.
GPT-J-6B on the NVIDIA RTX PRO 6000 Blackwell
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 570k | 108.1-128.8 t/s | ~2.4-2.9 (slow) |
| Q8 | yes | 616k | 216.1-257.5 t/s | ~4.8-5.7 (slow) |
| Q4 | yes | 637k | 385.9-459.9 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 RTX PRO 6000 Blackwell run GPT-J-6B?▶
Yes. At Q4 it generates ~385.9-459.9 tok/s and fits up to 637k 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?▶
At Q4, up to about 637k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.