AMD Instinct MI400 / MI450
芯片
GPU
筹建中
AMD's 2026 rack-scale answer — and the chip behind the OpenAI 6-gigawatt deal.
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The MI400 series, announced for 2026, targets 432 GB of HBM4 and roughly 40 PFLOPS of FP4 per GPU, shipping in the 72-GPU 'Helios' rack platform. In October 2025 OpenAI and AMD announced a multi-year agreement to deploy up to 6 gigawatts of Instinct GPUs beginning with MI450 in late 2026 — with an equity warrant structure — the strongest customer endorsement AMD's AI line has received. All figures are announced targets.
规格与关键参数
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Overview
Designer
AMD
Status
Announced for 2026
Flagship commitment
OpenAI: up to 6 GW of Instinct deployment starting with MI450 in 2H 2026Reported
内存
Memory (announced)
432 GB HBM4, ~19.6 TB/sVendor claim
算力
FP4 (announced)
~40 PFLOPSVendor claim
Physical
Platform
Helios rack — 72 GPUs, doubling as AMD's NVL72 answerVendor claim
它如何与整个技术栈相连
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设计方
由……制造
内存技术
互联与网络
内部包含
前代产品
竞品
来源
AMD–OpenAI announcement (Oct 2025) ↗
记录审阅截至 2026-08-31 — 查看 方法论.