Enfabrica Raises $115M and Unveils Revolutionary GPU Networking Chip for AI Infrastructure

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Enfabrica, an AI networking startup, secures $115 million in Series C funding and introduces the ACF SuperNIC chip, promising to revolutionize GPU networking for AI applications with unprecedented performance and scalability.

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Enfabrica Secures $115 Million in Series C Funding

Enfabrica Corp., a high-performance networking chip startup, has successfully raised $115 million in an oversubscribed Series C equity financing round. The funding was led by Spark Capital, with participation from new investors Maverick Silicon and VentureTech Alliance, as well as existing investors including Atreides Management, Sutter Hill Ventures, Alumni Ventures, IAG Capital, and Liberty Global Ventures 12.

Revolutionary ACF SuperNIC Chip Unveiled

Alongside the funding announcement, Enfabrica introduced its groundbreaking ACF SuperNIC chip, touted as the world's fastest GPU networking chip. The new chip boasts a 3.2 terabyte-per-second accelerated compute fabric, positioning Enfabrica as a key player in the rapidly growing AI infrastructure industry 1.

Addressing Critical AI Infrastructure Challenges

The ACF SuperNIC chip is designed to tackle crucial challenges in AI computing networks, including:

  1. Network traffic congestion
  2. Input/output bottlenecks
  3. Memory scaling issues

These improvements are particularly significant as AI technologies advance and large language models require increasing amounts of data processing 1.

Technical Specifications and Capabilities

Enfabrica's ACF SuperNIC chip offers impressive technical specifications:

  • 800-gigabit-per-second Ethernet interface
  • 32 network ports (high radix)
  • 160 PCIe lanes
  • Ability to connect 4-8 advanced GPUs per server system
  • Supports building AI clusters with over 500,000 GPUs using a two-tier network design 13

The chip delivers four times the bandwidth and multipath resiliency compared to current network interface controllers, enabling unprecedented performance, scale, and resiliency for AI clusters 1.

Market Positioning and Industry Impact

Enfabrica's technology aims to optimize GPU compute networks, which are crucial for modern AI applications. As demand for generative AI and AI agents grows, the startup's timing for launching its AI network interconnect chips appears strategic 1.

The company's solution addresses a significant challenge in the AI field: efficiently connecting tens of thousands of chips in a network. By allowing AI computing chips to communicate with more parts of a network simultaneously, Enfabrica's technology could potentially increase the number of interconnected AI chips from about 100,000 to 500,000 before network performance degrades 3.

Leadership and Vision

Enfabrica was founded in 2020 by CEO Rochan Sankar, Chief Development Officer Shrijeet Mukherjee, and other experienced engineers. The startup emerged from stealth mode in March 2023 and has since gained significant attention and funding 12.

Sankar emphasized the company's pioneering role, stating, "We were the first to draw up the concept of a high-bandwidth network interface controller chip optimized for accelerated computing clusters" 2.

Future Outlook and Availability

Enfabrica plans to make the ACF SuperNIC chip available in initial quantities in the first quarter of 2025. Pre-orders are currently being accepted from Enfabrica and select partners 1.

With this latest funding round and innovative product launch, Enfabrica aims to establish itself as a leading provider of AI networking chips and network software, potentially reshaping the landscape of AI infrastructure and enabling more efficient and powerful AI systems 123.

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