Decision framework
- Choose the exact model and workload.
- Select quantization and context target.
- Estimate weights plus runtime reserve.
- Check software support for the hardware.
- Compare local total cost with cloud fallback.
PRACTICAL GUIDE
Why context length changes VRAM
KV cache grows with context, batch size, layers, and architecture.
Do not skip
Memory fit is necessary but not sufficient. Verify current runtime documentation, drivers, measured benchmarks, power, cooling, and return policy before purchase.
Run Fit Matcher →