a16z raises $1.1B 'Machine Age' fund for AI hardware infrastructure
Andreessen Horowitz has raised $1.1 billion for Machine Age, its first fund dedicated to hardware — AI processors, memory, networking, cooling, electrical infrastructure, data centers, and robots. The thesis is a supply gap: rack compute density has climbed 28-fold from an H100 to a Rubin rack and rack power from 5-10 kW toward 100-250 kW, while hardware supply grows 20-30% a year against triple-digit demand. A software-first firm putting a dedicated vehicle behind chips, cooling, and real estate marks where venture capital now sees the binding constraint on AI.
Source: techcrunch.com ↗
We need faster, more efficient systems. We need cheaper and higher-bandwidth memory across the memory hierarchy. We need faster and more scalable interconnects between nodes and systems.
Why this matters
- → Marks hardware, not software, as AI's new bottleneck
- → Power and cooling constraints now limit AI scaling more than chip design
- → Venture capital reallocating billions toward physical infrastructure