We have created our Video SDK with the goal of making it easy to use, intuitive, and highly customizable to make sure that both quality and end user experience are taken into consideration. With Video SDK, customers around the world can create engaging user experiences in real-time by using its real-time engagement features that are minimally coded and require only a small amount of time to deploy. Since our APIs and SDKs have gained global traction over the past few years, we thought it was important to show how our solution compares with four other video SDK vendors, so we commissioned TestDevLab – one of the top providers of software quality assurance tools and custom testing tools – to conduct an analysis of each.

There are a number of points included in the Zoom Video SDK Performance Report, including the following:

• As a way to determine video SDK quality, various factors are taken into consideration, such as the device being used, the network limitations, predictability and repeatability, and analytics.

• An analysis of the results was conducted, primarily looking at performance quality, bandwidth perseverance, and keeping CPU and RAM usage, as well as memory utilization, low during a period of significant packet loss, in order to gauge the overall success of the system

• A description of the environment in which the test will take place

A few key takeaways can be found below.

A look at the overall quality of performance

It is important that the performance of the network is of high quality across a variety of network conditions. Testing in the TestDevLab was conducted with an unlimited network and with audio delay, video delay, and frame-rates being monitored. As a result of the study, Zoom was found to have:

• Compared to the other four vendors, this is the vendor with the highest frame rate on video calls

• In all network conditions tested, the video quality was the most consistent. In order to test all manufacturers equally, we applied a low bandwidth restriction to all vendors equally. To start with, no bandwidth restriction was applied to all vendors, then a low bandwidth restriction was applied equally to all vendors.

Managing resources under unideal network conditions

TestDevLab then investigated the perseverance of sources in a scenario where 25% of packets were lost during a test. The loss of packets can slow down the speed of the network, cause bottlenecks, and interrupt the bandwidth of the network, which can be extremely expensive. There are a number of reasons why packets are lost, including network congestion, unreliable networks, software bugs, and devices that are overloaded.

During the tests, Zoom’s Video SDK had a packet loss of 25%, which resulted in the following results:

• When packet loss and constrained network conditions occur, this application performs well in preserving bandwidth and minimizing CPU and memory usage.

• Smart management out of the box that is responsive to call quality issues while conserving bandwidth at the same time

Keeping CPU/RAM usage low

A survey conducted by TestDevLab in Cork, Ireland looked at CPU usage per user count, CPU usage over time, and memory usage over time. During the testing, it was found that the Zoom Video SDK consistently consumed less CPU and memory than other video and audio development tools, while maintaining high quality audio and video performance.

Having a lower CPU and RAM usage will improve the user experience as well as the performance of the applications, decrease battery life complaints, and allow the user to run other applications along with the video call without experiencing any performance issues.

How one engineering team enhances service delivery with Zoom’s Video SDK

Our customers are telling us that Zoom’s Video SDK performs perfectly and provides the customer with a wide range of powerful features. TaskHuman, founded in 2017, has a mission to organize the world’s human expertise and make it instantly accessible through 1:1 video calls.

In order to integrate video into TaskHuman’s health and wellness application and to allow users to connect from around the world, the video SDKs are leveraged. Despite this, the organization’s legacy SDK vendor wasn’t able to provide a frictionless and reliable experience necessary for the organization, which forced the company to invest significant resources in identifying and resolving the company’s problems. By the beginning of 2021, TaskHuman switched from its current video SDK to Zoom’s Video SDK, and was able to accomplish the following with it:

• Ensure that video is as reliable as possible in its applications

• Enhance performance even in environments where bandwidth is limited

• Enhance the quality of service provided to customers

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