Reference

Benchmarks & bandwidth cost

Dits stores only the chunks that changed. Translated into cloud-egress dollars, here's what an equivalent delta transfer would be worth — with a link to the full, reproducible benchmark suite.

Storage delta is measured; egress savings are projected

The changed-chunk delta is real and measured— local content-defined chunking stores only the bytes that changed (~200 KB for the edit below, not 10 GB). The cloud-egress dollar savings, however, assume that delta is sent over a network on pull. Networked push/pull and delta sync over the wire are roadmap— not implemented yet — so treat the dollar figures as projected, derived from the measured storage delta. See the roadmap.

The short version

Whole-file tools (Git LFS, manual copies) move the entire asset on every change. Dits moves only the changed chunks. On a 10 GB asset with a small edit, that's ~200 KB instead of 10 GB — about $0.90 of egress avoided per distributed edit, and it compounds with every pull. See the full dollar breakdown and team scenario.

What costs money

Cloud providers bill for egress — data transferred out (downloads, pulls, CDN delivery). Uploads (transfer-in) are typically free. So the dollars accrue when a changed asset is distributed: every teammate who pulls the new version, or every viewer the CDN serves. With whole-file tooling, each of those is a full re-transfer. With Dits' content-defined chunking and delta transfer, it's just the changed chunks.

Per-edit egress, priced

One localized edit to a 10 GB asset. The byte figures come from the measured storage delta; the egress dollars are projected (they assume the delta is transferred on pull, which depends on roadmap networked sync). The only new math is multiplication (GB × $/GB).

Per distributed edit	Data moved	@ $0.09/GB (S3)	@ $0.01/GB (B2)
Git LFS / manual	10 GB	$0.90	$0.10
dits	~200 KB	< $0.01	< $0.01

Methodology & honesty

Figures are estimates with stated assumptions. The byte counts are measured (10 GB asset, ~200 KB changed-chunk delta); the dollar values are those bytes × a cited egress rate (AWS S3 / CloudFront first-tier $0.09/GB; Backblaze B2 ≈ $0.01/GB for range). On a full re-export or whole-clip re-grade, almost every byte changes, so Dits saves little — we say so on the main page too.

See the full benchmarks — reproducible, with the monthly team scenario and annual savings