# Meta to use custom AMD Instinct MI400 accelerators with 144GB of HBM4 for select workloads, report claims — could dramatically reduce cost at the expense of versatility

> AMD's custom Instinct MI450-based AI accelerator for Meta will use three times less memory than the fully-fledged Instinct MI455X and will be optimized primarily for recommendation systems operated by Facebook and other…

- **Source:** [Tom's Hardware](https://www.tomshardware.com/tech-industry/artificial-intelligence/meta-to-use-custom-amd-instinct-mi400-accelerators-with-144gb-of-hbm4-for-select-workloads-report-claims-could-dramatically-reduce-cost-at-the-expense-of-versatility?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a60b4fb5ff4a84b02d313ec)
- **Published:** 2026-07-22
- **Category:** AI & Bots
- **Tags:** #nvidia #amd #ai
- **Canonical:** http://localhost:4321/a/6a60b4fb5ff4a84b02d313ec

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_GearOpen's distilled summary. The full original article is published at Tom's Hardware (source link above); GearOpen does not republish the source's full text._