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How to Run a Timedemo in Quake II and Check FPS

Use timedemo 1 before playing a Quake II demo to measure its frame-rate performance. The playback command and demo filename vary across classic and RTX builds.
WorldQuake II and Check FPS Length2 min Posted Quest giverVGSources Team
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In the original Quake II, open the console, enter timedemo 1, then play a demo file—commonly with map demo1.dm2 or demomap demo1.dm2, depending on the engine. When playback finishes, read the reported frame-rate result in or after the console. This benchmarks a recorded demo; it is not a live FPS overlay.

Run a timedemo in original Quake II

  1. Open the console. Start the Quake II build you want to test and press ~ (tilde). The Quake II manual reviewed identifies this key as the console toggle: Quake II manual.
  2. Enable timedemo mode. Type timedemo 1 and press Enter. The original-era instructions use this before starting demo playback.
  3. Play a demo using the command supported by your build. Try map demo1.dm2 or demomap demo1.dm2 for the classic demo file. Which command works depends on the engine; do not assume that one syntax applies to every release.
  4. Wait for playback to finish. The run proceeds quickly rather than at normal interactive playback speed. Check the console output for the resulting frame-rate performance, commonly reported as an average.

The classic game documentation names demo1.dm2 and demo2.dm2. If the command fails, first confirm that the named file exists in the game data expected by your installation.

Quake II RTX and other builds use different demo commands

Do not copy the original-game command blindly into Quake II RTX. PCWorld’s walkthrough records command and filename changes across RTX revisions, including demo demo1, demomap demo1.dm2, demomap q2demo1.dm2, and a later update using demo q2demo1.dm2: PCWorld’s Quake II RTX benchmark walkthrough. The appropriate syntax depends on the installed version and the demo file available to it.

For any build, check the actual demo filename and use the playback command documented for that engine version. A missing file and an unsupported command can produce similar-looking failures, so verify both before troubleshooting further.

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Make the result useful for comparison

A timedemo result describes performance during a particular recorded demo under the settings used for that run. For a meaningful comparison, hold the following constant:

  • Quake II build and renderer
  • Demo file
  • Resolution and graphics quality
  • Sound setting, if you are changing it between runs

PCWorld advises setting resolution and graphics quality before benchmarking. An archival guide attributed to Brian Hook recommends turning sound off for frame-rate testing; treat that as historical advice for controlling test conditions, not a requirement for every current build. If you report a result, include the game version, demo, renderer, resolution, graphics settings, and sound condition so readers know what was measured.

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