Encoding Benchmark — Simulate Local Stream

How to Use the Encoding Benchmark Tool

The Defineware Encoding Benchmark helps streamers estimate how well their computer can handle video encoding during a live stream. It simulates a local streaming workload using your browser and measures how quickly your system can render and encode frames. This can help you decide which OBS or Streamlabs settings will run smoothly on your machine.

1. Select your desired resolution.
   Choose the same output resolution you plan to stream at (for example 1920×1080, 1280×720, or 854×480).
2. Choose a target FPS.
   Select the frame rate you normally stream at, such as 30 FPS or 60 FPS.
3. Adjust the encoding quality.
   Higher quality settings simulate more demanding encoding workloads, similar to higher bitrate or more complex encoder presets in OBS.
4. Set the benchmark duration.
   Choose how long the benchmark should run. Longer tests provide more accurate averages.
5. Click “Start Benchmark”.
   The tool will begin rendering frames to the canvas and simulating encoding operations.
6. Review the live metrics.
   While the test runs, the tool measures:
   • Frames rendered
   • Dropped frames
   • Average encode time
   • Maximum encode time
   • Estimated CPU load
7. Check the summary and recommendations.
   After the benchmark finishes, the tool will give a quick overview of whether your system should comfortably handle the selected settings or if you should lower them.

Benefits of Using an Encoding Benchmark

Streaming requires your computer to render your gameplay, encode video, and upload it to the streaming platform all at the same time. If your encoding settings are too demanding, you may experience stuttering, dropped frames, or unstable streams. The Encoding Benchmark helps you find a balance between quality and performance.

• Optimize OBS Settings
  Test different resolutions, frame rates, and encoding quality levels before going live so you can choose settings that run smoothly.
• Reduce Dropped Frames
  By identifying when your system struggles with encoding, you can adjust settings to avoid lag or skipped frames during your stream.
• Estimate CPU Workload
  The benchmark provides a rough estimate of how much processing power encoding tasks will require on your system.
• Compare Performance Changes
  Run the benchmark after upgrading hardware, changing encoder presets, or adjusting stream settings to see how performance improves.
• Prepare for Streaming Platforms
  Use the results to better configure streaming software for platforms such as Twitch, Kick, or YouTube.
• Quick Local Testing
  Since the benchmark runs locally in your browser, you can quickly test performance without needing to start an actual stream.

Whether you're a beginner setting up your first stream or an experienced creator optimizing performance, the Defineware Encoding Benchmark provides a simple way to test how demanding your streaming settings are before you go live.

Streaming & Encoding FAQ

What is video encoding for streaming?

Video encoding is the process of compressing raw video into a format that can be transmitted efficiently over the internet. Streaming software like OBS or Streamlabs captures your gameplay, webcam, and overlays, then encodes them into a video stream that platforms such as Twitch, Kick, or YouTube can receive and broadcast to viewers.

Why do streams drop frames?

Dropped frames usually happen when your computer cannot keep up with the workload required to encode video in real time. This can occur if your resolution, frame rate, or encoder preset is too demanding for your CPU or GPU. Running an encoding benchmark helps determine whether your system can maintain stable frame delivery.

What are the best OBS settings for streaming?

The best OBS settings depend on your computer hardware and internet speed. Many streamers start with 1280×720 resolution at 30 FPS with a balanced encoder preset, then increase quality if their system can handle it. Testing with a benchmark tool helps determine the highest quality settings your system can maintain without dropping frames.

Should I stream at 30 FPS or 60 FPS?

Streaming at 60 FPS produces smoother motion, especially for fast-paced games. However, it requires more encoding power. If your benchmark shows high CPU load or dropped frames, switching to 30 FPS can significantly reduce system strain while still providing a good viewing experience.

What resolution should I stream at?

1080p streams look sharper but require more processing power and higher bitrate. Many streamers choose 720p because it provides a good balance between quality, performance, and viewer accessibility. The best resolution is the highest one your system can encode without causing performance issues.

Can a browser benchmark accurately test streaming performance?

Browser benchmarks provide a useful approximation of encoding workload by simulating frame rendering and compression. While they do not perfectly replicate a full OBS stream, they can give streamers a quick way to estimate how demanding different settings may be on their system.