Undervolt with a Click: NV-UV Optimizes Your Video Card Effortlessly and Without Experience

Today we talk about a tool aimed at NVIDIA users that is still in development but has become truly interesting with the latest version. This is NV-UV, version 0.93 "Cantor", a tool that allows you to configure undervolting, meaning voltage reduction, for NVIDIA video cards. With the latest update, compatibility has been expanded to new generations of graphics cards. The colleagues at HardwareLuxx have thoroughly tested the software with both an RTX 5090 and an RTX 5080 with quite interesting results.

One of the most significant updates concerns the new Direct Mode, which eliminates the intermediate step via MSI Afterburner during the scanning phase. Previously, each point of the voltage/frequency curve required between three and five seconds. Now, the time drops to about 50 milliseconds per point, thanks to direct communication with NVAPI. This change drastically reduces the overall duration of the scan.

Despite this progress towards greater independence, MSI Afterburner remains essential for managing profiles, overclocking, OSD, and fan curves, as well as for the practical application of setups generated by the tool.

With version 0.93, support for presets for GeForce RTX 5060 Ti arrives, adding to the already compatible GPUs based on Blackwell architecture, including RTX 5090, RTX 5080, RTX 5070 Ti, and RTX 5070. Each card benefits from four predefined configurations: Eco, Balanced, Performance, and Max, designed to offer different balances between power consumption and performance.

NV-UV also introduces experimental support for GeForce RTX 4000 GPUs based on Ada Lovelace architecture. In this case, the presets do not yet derive from direct scans from the tool, but from data collected by the community. This approach still allows for initial functional integration.

Among the new features is a safety function called Game Replay. In case of a crash during a gaming session, the software automatically saves more conservative frequency and voltage settings, preventing instability upon restart.

On the technical front, NV-UV now automatically compensates for a discrepancy of about 5 mV between the set and actual voltage. The system applies a correction of +5 mV per frequency step, improving the accuracy of configurations and reducing the risk of instability.

NV-UV 0.93 is available through the project's Discord server. The developer has also published a detailed guide in German, useful for making the most of the tool's advanced features.