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// RUN — FITS
Can the NVIDIA GeForce RTX 4090 run Segatron XL large, M=384?
Yes — here's how fast and up to what context, with real measured numbers.
Segatron XL large, M=384 on the NVIDIA GeForce RTX 4090
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 306k | 1431.6-1706.1 t/s | ~56.8-67.7 (slow) |
| Q8 | yes | 310k | 2863.2-3412.3 t/s | ~113.6-135.4 (slow) |
| Q4 | yes | 312k | 5112.8-6093.4 t/s | ~202.9-241.8 (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 4090 run Segatron XL large, M=384?▶
Yes. At Q4 it generates ~5112.8-6093.4 tok/s and fits up to 312k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~202.9-241.8 tok/s.
How much context fits?▶
At Q4, up to about 312k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.