AMD Instinct MI355X ☆

Launched June 2025, the MI355X moves AMD to TSMC N3P and 185 billion transistors, adds FP4 and FP6 datatypes, and carries 288 GB of HBM3E at 8 TB/s. AMD's published figures — 10.1 PFLOPS FP8, 20.1 PFLOPS FP4 — put it in direct contention with Blackwell, and OpenAI, Meta, Microsoft and Oracle all appeared as named customers or partners during 2025. The liquid-cooled MI355X runs to 1,400 W.