The Definitive Guide toAI Data Centers
Ask the GuideAboutAccount
Guide › Numbers register › Claim

AMD Helios (72× MI455X) rack-scale FP4 (1.4 EF FP8), 31 TB HBM4, ORW double-wide

~2.9 EF FP4modeled

Value kindmodeled — Interpret this value according to its displayed kind, scope, source, and as-of date.
ScopeHelios OEM/ODM reference design; the appendix uses the advertised configuration and separately records the delivery forecast.
As of2026-09
SourceAMD, Helios product page, Rackscale Solution Specs and footnote 2. · Rackscale Solution Specs and footnotes 1–2; FAQ reference-design status
Reviewchecking…review by 2026-10-08 · standard cadence
Recorded changeslast 2026-09-16 · 2 revisions tracked
Claim idamd-helios-72-mi455x-rack-scale-fp4-1-4-ef-fp8

Where the guide uses it

← Full numbers register — every date-stamped figure in the guide, with revision history.