Comcast is rolling out ultra-low latency technology for its Xfinity Internet service, designed to significantly reduce lag during high-traffic, bi-directional online activities. The technology debuts in partnership with four major platforms: Valve’s Steam games, NVIDIA’s GeForce Now cloud gaming service, select apps on Meta’s mixed reality headsets, and Apple’s FaceTime.
The breakthrough leverages the Internet Engineering Task Force’s L4S (Low Latency, Low Loss, Scalable Throughput) open standard. By signaling network congestion in real time, L4S improves the delivery of subsequent data packets, reducing delays for smoother online experiences.
Initially available in select cities—including Atlanta, Chicago, Colorado Springs, Philadelphia, Rockville (Maryland), and San Francisco—the service will expand to more locations in the coming months. While the first wave of applications comes from Comcast’s testing partners, the technology is open to other developers once fully deployed, making it accessible to all Xfinity customers in supported areas.
This innovation marks a significant leap forward for gamers, streamers, and anyone reliant on real-time online interactions. Stay tuned for updates as Comcast extends its low-latency connectivity nationwide .