Valve clarifies Steam Deck average framerate data collection limits

Valve has expanded the documentation for its Steam Deck average framerate feature, which displays performance data on game store pages as part of the Steam Deck Verified program. The company now states that it only collects framerate data when the device's default frame limit is active—90 FPS on Steam Deck OLED and 60 FPS on LCD models—and excludes sessions where users have manually capped framerates lower. The updated text also notes that idle time and invalid samples are filtered out, and that multiple samples are gathered per gameplay session.

The clarification addresses one concern about data integrity, but the original source and broader community criticism highlight persistent methodological gaps. The data remains uncontrolled for graphics quality presets, mod usage, external upscaling tools like HelixSR, and variable game intensity (menu time versus active gameplay). Valve also explained that VSync causes visible gaps in framerate distribution charts, particularly between 45 and 90 FPS, as frames cluster at divisors of the refresh rate rather than displaying intermediate values.

What changed in Steam Deck framerate data collection

• Default frame limit filtering: Data collection is restricted to sessions where the Steam Deck's framerate limit matches hardware defaults—90 FPS for OLED models and 60 FPS for LCD models—excluding user-defined lower caps that could artificially depress reported performance.
• Sample filtering pipeline: Valve removes idle time and unspecified "invalid samples" from datasets, with multiple samples collected per gameplay session rather than relying on single-point measurements.
• VSync distribution artifacts: The framerate charts show clustering at 45 and 90 FPS with gaps between, which Valve attributes to VSync behavior on the 90 Hz OLED panel; this creates quantization effects where intermediate framerates appear to pool at refresh rate divisors.
• Uncontrolled variables persist: The system does not normalize for in-game graphics settings, mod installations, external performance tools like HelixSR, or gameplay context (menus versus intensive scenes), leaving averages potentially unrepresentative of typical play experiences.
• Verified program integration: The framerate data feeds into Steam Deck compatibility ratings, with discrepancies noted between reported averages and actual performance in titles marked Unsupported or Playable, including cases where averages suggest smooth performance that users do not experience.

Why it matters

For Linux gaming and Steam Deck purchasers, this clarification offers modest transparency into a metric that increasingly influences buying decisions, yet the lack of controlled testing conditions means the data may mislead users about real-world performance on SteamOS. The episode underscores growing tension between crowdsourced performance metrics and standardized hardware validation in handheld PC gaming, where Proton compatibility layers and variable system configurations already complicate predictable performance benchmarking.