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CPU offload split estimator

One-sentence answer: Apply a simple penalty when part of the model is offloaded to host memory.

Educational calculator. Formulas are plain text. Replace defaults with your documents when accuracy matters.

How it is calculated

effective ≈ tps × (1 − frac + frac × penalty_factor).

Worked example

40 tok/s, 25% offload, factor 0.15 → about 31.5 tok/s.

Limits

Embed:

<iframe src="https://vramwise.com/tools/offload-split/?embed=1" title="CPU offload split estimator" loading="lazy" style="width:100%;min-height:420px;border:0"></iframe>
<p><a href="https://vramwise.com/tools/offload-split/">CPU offload split estimator by VRAMwise</a></p>

Related

All tools · Guides · Methodology

Disclaimer

Educational use only. Not tax, legal, investment, or purchasing advice.

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Frequently asked questions

What is this for?

Sketch speed loss when a fraction of layers run off-GPU. Use the formulas and examples; change one input at a time.

Is this advice?

No. Educational estimates only. Confirm with primary sources and professionals.

How fresh are defaults?

Defaults cite as-of dates on data pages or tool notes.

Can I embed it?

Yes — keep the attribution link on the parent page.

Any AdSense code?

No ad script loader or shared pub-id is embedded here.

Result looks wrong?

Check units and model limits, then contact with URL and inputs.

CPU Offload Split Estimator (2026) — by VRAMwise ↗