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// RUN — FITS
Can the NVIDIA GeForce RTX 5090 run LUXIA-21.4B-Alignment?
Yes — here's how fast and up to what context, with real measured numbers.
LUXIA-21.4B-Alignment on the NVIDIA GeForce RTX 5090
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | yes | 25k | 61.1-72.9 t/s | ~1.4-1.6 (slow) |
| Q4 | yes | 61k | 109.2-130.1 t/s | ~2.4-2.9 (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 5090 run LUXIA-21.4B-Alignment?▶
Yes. At Q4 it generates ~109.2-130.1 tok/s and fits up to 61k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2.4-2.9 tok/s.
How much context fits?▶
At Q4, up to about 61k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.