{"data":{"slug":"amd-mi355x","etype":"chip","name":"AMD Instinct MI355X","cat":"GPU","subtitle":"CDNA4 on 3 nm: 288 GB HBM3E, FP4/FP6 support, and Blackwell-class ambitions.","summary":"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.","attrs":[{"g":"Overview","l":"Designer","v":"AMD"},{"g":"Overview","l":"Architecture","v":"CDNA 4, chiplet"},{"g":"Overview","l":"Announced","v":"Launched June 2025"},{"g":"Overview","l":"Status","v":"Shipping"},{"b":"Vendor spec","g":"Manufacturing","l":"Foundry / process","v":"TSMC N3P compute dies"},{"b":"Vendor spec","g":"Manufacturing","l":"Transistors","v":"185 billion"},{"b":"Vendor spec","g":"Memory","l":"Memory","v":"288 GB HBM3E"},{"b":"Vendor spec","g":"Memory","l":"Memory bandwidth","u":"TB/s","v":"8"},{"b":"Vendor spec","g":"Compute","l":"FP8 (dense)","u":"PFLOPS","v":"10.1"},{"b":"Vendor spec","g":"Compute","l":"FP6/FP4 (dense)","u":"PFLOPS","v":"20.1"},{"b":"Vendor spec","g":"Compute","l":"BF16 (dense)","u":"PFLOPS","v":"5.0"},{"b":"Vendor spec","g":"Power","l":"TDP","u":"W","v":"1,400 (liquid) / MI350X 1,000 (air)"},{"g":"Physical","l":"Form factor","v":"OAM; 8-GPU UBB platform"}],"kf":{"node":"TSMC N3P","year":2025,"class":"GPU","tdp_w":1400,"mem_bw":8.0,"memory":"288 GB HBM3E","designer":"AMD"},"aliases":["MI355X","MI350X","MI350","CDNA4"],"ticker":null,"exchange":null,"hq":null,"founded":null,"website":null,"status":"Shipping","region":null,"asof":"2026-01-15","sources":[{"url":"https://www.amd.com/en/newsroom/press-releases/2025-6-12-amd-unveils-vision-for-an-open-ai-ecosystem-detai.html","label":"AMD Advancing AI 2025 announcement"}]},"meta":{"found":true,"count":1,"served_from":"site cache (no live upstream calls)","as_of":"2026-10-14T03:45:24+00:00","disclaimer":"Research and information only — not investment advice. Structured records carry basis labels (vendor spec / reported / estimate); market quotes are delayed/indicative.","attribution":"Records compiled from vendor documentation, official filings and reputable public reporting; market quotes via financial data providers. See /data-sources."}}