Broadcom Initiates Mass Production of 800G CPO Switch ASICs for Next-Gen AI/HPC Data Centers, Slashing Power and Latency

August 2, 2026

Photonics News Weekly USA

Overview

Leading semiconductor manufacturer Broadcom has commenced mass production of its 800G Co-Packaged Optics (CPO) switch ASICs, specifically designed for AI and HPC data centers. This innovative ASIC integrates CPO optical engines with a retimer-less design, drastically reducing overall system power consumption and data latency. Initial deployments are targeted at next-generation AI clusters for major cloud providers, promising significant contributions to high-speed data processing and improved power efficiency, thereby accelerating AI infrastructure cost reduction and performance enhancement.

In Depth

Key Findings

Broadcom, a prominent semiconductor manufacturer, has announced the commencement of mass production for its 800G Co-Packaged Optics (CPO) switch ASICs. These ASICs are engineered for next-generation Artificial Intelligence (AI) and High-Performance Computing (HPC) data centers, integrating CPO optical engines in a retimer-less design that significantly reduces power consumption and data latency compared to traditional electrical interconnects. This advancement is critical for achieving the ultra-high-speed and energy-efficient data transmission demanded by modern AI workloads.

Technical Details

The Broadcom 800G CPO switch ASIC leverages cutting-edge silicon photonics technology co-packaged with CMOS switching circuitry within a single module. This co-packaging approach minimizes signal degradation and power loss typically associated with long-distance electrical traces on printed circuit boards. By eliminating retimers, the design streamlines signal processing, leading to a substantial reduction in end-to-end latency while simultaneously improving overall data center power efficiency. This technology is poised to resolve GPU-to-GPU communication bottlenecks in AI clusters and large language model (LLM) training environments, which require terabit-scale bandwidth.

Background & Context

The explosive growth of AI and HPC has placed unprecedented demands on data center network performance and power efficiency. Traditional electrical interconnect solutions are increasingly struggling with power consumption and signal attenuation as data rates climb into the gigabit and terabit ranges. CPO technology addresses these challenges by placing optical transceivers much closer to, or even within the same package as, the switch ASICs, thus bridging the gap between electrical and optical domains. Broadcom’s move to mass production signifies a critical transition of CPO from a research concept to a commercially viable and scalable solution for data center infrastructure.

Strategic Significance & Outlook

Initial deployments of Broadcom’s 800G CPO switch ASICs are anticipated within the next-generation AI clusters of leading cloud providers. This will directly translate to faster AI model training times and enhanced inference performance, thereby accelerating the evolution of AI services globally. Furthermore, the significant reduction in power consumption will contribute to lower data center operational costs and reduced environmental impact. As the industry continues its shift towards optical interconnects, CPO technology is expected to become a standard for future data center architectures, with continuous advancements in density and speed. Broadcom is solidifying its position as a pivotal enabler of AI-era infrastructure.

Source: https://www.photonicsnews.com/800g-cpo-ai-datacenter-switch-asic-mass-production-20260729

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