# iPhone 18 Pro Max storage can drop lower than a hard drive at 1.1 MB/s during heavy writes — QLC NAND offers higher capacity but reportedly suffers 38% drop compared to TLC-based Pro — retained record

> Retained news record from news:toms-hardware.

Canonical: https://highsignal.app/data/records/2b13fa146a18ed73

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source: [news](https://highsignal.app/data/news) (news:toms-hardware)  published 2026-09-21 17:34 ingested 2026-09-22 02:52

[original source ↗](https://www.tomshardware.com/pc-components/ssds/iphone-18-pro-max-storage-can-drop-lower-than-a-hard-drive-at-1-1-mb-s-during-heavy-writes-qlc-nand-offers-higher-capacity-but-reportedly-suffers-38-percent-drop-compared-to-tlc-based-pro)

## retained text

No document body was retained for this record — only its metadata was stored.

document fetched 2026-09-22 02:52 · canonical https://tomshardware.com/pc-components/ssds/iphone-18-pro-max-storage-can-drop-lower-than-a-hard-drive-at-1-1-mb-s-during-heavy-writes-qlc-nand-offers-higher-capacity-but-reportedly-suffers-38-percent-drop-compared-to-tlc-based-pro