NVIDIA_OC Daemon

At a glance

• Editor score
  7.4 / 10
• Pricing
  Free plan
• Best for
  Minimalist automated NVIDIA Linux control
• Free plan
  Yes
• Paid from
  Free
• Power-limit control
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Applies per-device GPU and memory offsets plus power limits
  • Reloads TOML configuration changes after a five-second debounce
  • Works without X.Org, Coolbits, GreenWithEnvy, or nvidia-settings

• Where it doesn't

  • Linux-only and requires a supported NVIDIA GPU with NVML
  • Requires Rust for building and root or equivalent permissions
  • No GUI, fan curves, temperature limits, voltage controls, or profile slots

Our verdict on NVIDIA_OC Daemon

NVIDIA_OC Daemon is an open-source Rust daemon for Linux systems with supported NVIDIA GPUs and an NVIDIA driver providing NVML. It is aimed at users who want a lightweight, configuration-driven way to apply GPU tuning without relying on X.Org, Coolbits, GreenWithEnvy, or nvidia-settings. Wayland users are included in its intended audience, particularly when X.Org-based tooling is not desirable.

Its main strength is focused automation. The daemon uses NVML through nvml-wrapper and direct NVML bindings, generates a configuration file from currently reported GPU settings on first run, and supports per-device GPU frequency offsets, memory frequency offsets, and power limits. TOML fields cover the device index, GPU offset, memory offset, and power limit. After configuration changes, the daemon watches its configuration directory and reloads them following a five-second debounce. Logs are written to the terminal and to a file in the process working directory, giving the setup a straightforward operational trail.

The trade-off is narrow scope. NVIDIA_OC Daemon concentrates on applying clock offsets and power limits rather than providing a complete graphical tuning environment. It does not offer documented controls for temperature limits, fan curves, voltage, or saved profile slots, and it does not include a GUI or a systemd unit. Building also requires Rust, while operation requires root or equivalent permissions. Choose it for a minimalist Linux workflow centered on repeatable NVML configuration; choose a broader GUI-oriented tool instead if you need visual controls, fan management, voltage tuning, or profile switching.

Your product? Our editors can test NVIDIA_OC Daemon in depth and publish a review, labelled as paid · from $149/mo →

NVIDIA_OC Daemon pricing

NVIDIA_OC Daemon fact sheet

Alternatives to NVIDIA_OC Daemon

• MSI AfterburnerA free, multi-vendor Windows tuner with deep controls, monitoring, profiles, and capture.9.4
• ASUS GPU Tweak IIIA capable free tuner with guided modes, profiles, scanning, and multi-vendor support.9.2
• PPenguinBurnerFree open-source Linux tuning with scans, profiles, controls, and overlay telemetry.8.9

See all NVIDIA_OC Daemon alternatives →

Featured on iTechGuides

NVIDIA_OC Daemon is listed in our GPU Tuning Software directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/nvidia-oc-daemon/"><img src="https://www.itechguides.com/best/badge/nvidia-oc-daemon.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update