On August 4, 2025, U.S. semiconductor giant Broadcom officially introduced its latest Ethernet routing chip, Jericho 4. Built using TSMC’s cutting-edge 3nm process, Jericho 4 is engineered to support massive, cross-data-center AI infrastructure, boasting 200G PAM4 signaling and an innovative 3.2Tbps HyperPort for ultra-high-speed connectivity.
🔧 Key Features & Innovations #
⚙️ Advanced 3nm Process #
Leveraging TSMC’s 3nm manufacturing, Jericho 4 achieves superior integration and efficiency. The result is increased bandwidth and reduced power consumption for next-gen network systems.
🔗 Massive Interconnect Capacity #
Each Jericho 4-based system can connect over 1 million XPUs, enabling large-scale, collaborative computing across multiple data centers—multiplying the capabilities of previous solutions.
🚀 Industry-Leading Bandwidth #
With 51.2 Tbps total throughput, the chip introduces 3.2T HyperPort technology, merging four 800GE links into a single logical port. This eliminates traditional load balancing inefficiencies and boosts link utilization by up to 70%.
🌐 Long-Distance Lossless Transmission #
Through deep buffering and smart congestion management, Jericho 4 enables lossless RoCE (RDMA over Converged Ethernet) over distances up to 100 km—crucial for distributed AI deployments that span across geographies.
🔒 End-to-End Encryption at Wire Speed #
Each port is equipped with MACsec encryption, ensuring secure data transfers between data centers—without compromising throughput even under full load.
✅ UEC Standard Compliance #
Jericho 4 is fully aligned with the Ultra Ethernet Consortium (UEC) standard, ensuring seamless compatibility with UEC-certified NICs, switches, and software environments.
🧠 The Complete Ethernet AI Platform #
With Jericho 4, Broadcom completes its AI-optimized Ethernet solution stack:
- Jericho 4: High-speed interconnect across data centers.
- Tomahawk 6: 100Tbps backbone for intra-data center clusters.
- Tomahawk Ultra: Sub-400ns ultra-low latency for inter-XPU communication.
📦 Market Availability & Outlook #
Sampling of Jericho 4 began in early August, with broad commercial deployment expected within the next nine months. As AI workloads scale, Jericho 4 is positioned to become a cornerstone of secure, high-performance, distributed AI networks, marking a shift toward more distributed, user-proximate data center architectures.
