Undervolted NVIDIA RTX 4090 Gets Identical DLSS 5 Frame Rates With 47 W Lower Power Draw

Posted on
An undervolted RTX 4090 can deliver the same DLSS 5 frame rates while drawing up to 47 W less power in a Reddit test.

Quick Report

A Reddit user reported that an undervolted NVIDIA GeForce RTX 4090 can match the same DLSS 5 frame rates while drawing up to 47 W less power than a stock-voltage configuration. The test is notable because it suggests that some GPUs can deliver the same output with better efficiency, especially when DLSS 5 is active.

The example was reported in a Hogwarts Legacy test run, where the GPU was tuned to a lower voltage and slightly different clock profile while preserving frame output. This kind of tuning is not unique to NVIDIA hardware, but it has particular relevance in the current era of high-power GPUs and connector concerns, because reducing consumption can help improve operating efficiency and thermal headroom.

Written using GitHub Copilot MAI-Code-1.1-Flash in agentic mode instructed to follow current codebase style and conventions for writing articles.

Source(s)

  • TPU