🔌
New: connect Claude & other AIs to GenAIList over MCP — research the catalog and contribute to the shared knowledge base. Learn how →
// RUN — FITS
Can the NVIDIA H200 run ALiBi (L=3072, Lvalid = 3072)?
Yes — here's how fast and up to what context, with real measured numbers.
ALiBi (L=3072, Lvalid = 3072) on the NVIDIA H200
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1917k | 1347.7-1606.2 t/s | ~11.2-13.4 (slow) |
| Q8 | yes | 1937k | 2695.4-3212.3 t/s | ~22.5-26.8 (slow) |
| Q4 | yes | 1945k | 4813.2-5736.3 t/s | ~40.1-47.8 (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 H200 run ALiBi (L=3072, Lvalid = 3072)?▶
Yes. At Q4 it generates ~4813.2-5736.3 tok/s and fits up to 1945k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~40.1-47.8 tok/s.
How much context fits?▶
At Q4, up to about 1945k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.