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PRACTICAL GUIDE

Q4 vs Q5 vs Q8 vs FP16

Compare memory footprint, quality trade-offs, and runtime compatibility.

Decision framework

  1. Choose the exact model and workload.
  2. Select quantization and context target.
  3. Estimate weights plus runtime reserve.
  4. Check software support for the hardware.
  5. Compare local total cost with cloud fallback.

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 →