{
  "id": 9592083,
  "title": "The Most Expensive iPhone Pros Might be the Slowest Ones",
  "url": "https://urgent.news/2026/09/24/the-most-expensive-iphone-pros-might-be-the-slowest-ones",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-24T17:01:04.000Z",
  "source": {
    "name": "ProPakistani",
    "slug": "propakistani",
    "url": "https://propakistani.pk/2026/09/24/the-most-expensive-iphone-pros-might-be-the-slowest-ones/"
  },
  "original_language": "en",
  "account": "The latest iPhone 18 Pro and iPhone 18 Pro Max models, with storage options of 1TB and 2TB, are reportedly using QLC flash memory, which is slower compared to the faster TLC flash memory used in the 256GB and 512GB variants. Tests conducted by Homolab on BiliBili revealed a significant difference in sustained write speeds between these storage types. The iPhone 18 Pro models are available in four storage configurations: 256GB, 512GB, 1TB, and 2TB. While TLC flash memory, which stores three bits per cell, offers higher performance in the 256GB and 512GB models, QLC flash memory, storing four bits per cell, is used in the higher-end 1TB and 2TB models. To improve performance, Apple reportedly utilizes multiple storage layers in the QLC models, with data first written to a faster SLC cache before moving to TLC cache and finally reaching the slower QLC storage. However, as storage fills up, the write speeds drop significantly, with QLC storage performance plummeting to around 1.1MB/s during sustained writes.",
  "summary": "Apple’s iPhone 18 Pro and iPhone 18 Pro Max models with 1TB and 2TB storage options are reportedly using slower … Read More The post The Most Expensive iPhone Pros Might be the Slowest Ones appeared first on ProPakistani .",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}