The demand for low latency has become paramount across various industries. Whether it’s real-time gaming, financial transactions, or video conferencing, the importance of minimizing delays in data transmission cannot be overstated. Understanding what low latency entails and how to achieve it is crucial for businesses and individuals alike.

The Importance of Low Latency

Low latency refers to the minimal delay in the transmission of data between a sender and a receiver. It directly impacts the responsiveness and efficiency of digital interactions. In gaming, for instance, even a slight delay can mean the difference between victory and defeat. Similarly, in financial trading, milliseconds can determine profit margins. In the realm of video conferencing, low latency ensures smooth communication, fostering seamless collaboration and engagement.

Choosing the Right Latency Category for Your Scenario

Here’s a guide to help you select the appropriate latency category for your specific use case:

Ultra-Low Latency (0-1 ms)

  • Ideal for applications requiring instant responses, such as high-frequency trading, online gaming, or virtual reality.
  • Requires specialized hardware, networking infrastructure, and software optimizations to achieve such minimal latency.
  • Often comes with higher costs due to the need for advanced technologies and infrastructure.

Low Latency (1-10 ms)

  • Suitable for applications where real-time interaction is essential but can tolerate slightly higher delays than ultra-low latency scenarios.
  • Commonly used in video conferencing, voice over IP (VoIP), live streaming, and interactive web applications.
  • Achievable with high-performance computing resources and optimized network configurations.

Moderate Latency (10-100 ms)

  • Appropriate for most web applications, mobile apps, and cloud-based services where real-time responsiveness is desirable but not critical.
  • Examples include e-commerce platforms, social media, content delivery networks (CDNs), and enterprise applications.
  • Achievable with standard internet connections and cloud computing infrastructure.

High Latency (100 ms and above)

  • Acceptable for applications that do not require real-time interaction or where latency is less critical, such as email, file transfers, and batch processing.
  • Common in situations where occasional delays are tolerable, such as non-interactive media streaming or background data synchronization.
  • It can be the result of network congestion, geographical distance, or resource constraints.

How can you achieve Low Latency?

Here are the technology approaches to achieve low latency:

Right Codec

Codec selection plays a significant role in reducing latency during data transmission. Modern codecs, such as H.264 and H.265, prioritize efficiency without compromising on quality. By efficiently compressing data, these codecs minimize transmission times, thereby reducing latency. Moreover, adaptive codecs dynamically adjust parameters based on network conditions, further optimizing performance.

Tencent RTC

Tencent’s Real-Time Communication (RTC) platform stands out as a robust solution for achieving low latency in audio and video communication. Leveraging a reliable global network infrastructure, Tencent RTC utilizes a multi-level addressing algorithm to connect to nodes across diverse regions. This extensive network coverage enables Tencent RTC to maintain an average end-to-end latency below 300 ms, ensuring smooth and responsive interactions.

Moreover, Tencent RTC implements intelligent Quality of Service (QoS) control and optimized encoding techniques to minimize stuttering and ensure high-quality communication. With support for resolutions up to 1080p, even under challenging network conditions, Tencent RTC delivers superior audio and video quality. Its adaptive features, comprehensive SDKs, and easy integration processes make it a preferred choice for businesses seeking low latency solutions.


We hope we have guided you about what is low latency. By employing appropriate technological approaches, such as codec optimization, managed networks, adaptive streaming, and platforms like Tencent RTC, businesses can enhance their digital interactions and stay ahead in an increasingly competitive landscape.